Homework Help

How many chromosomes are there in a human body cell?

user profile pic

enotes | Valedictorian

Posted October 9, 2011 at 4:00 PM via web

dislike 13 like

How many chromosomes are there in a human body cell?

141 Answers | Add Yours

user profile pic

drahmad1989 | Student , Undergraduate | Valedictorian

Posted January 19, 2012 at 11:41 PM (Answer #1)

dislike 15 like

46 chromosomes in human's cell. And all these are in form of pairs ,so 23 pairs of chromosomes in human body cell.

user profile pic

lynn30k | High School Teacher | (Level 3) Associate Educator

Posted May 30, 2012 at 3:06 PM (Answer #3)

dislike 11 like

I have to correct the first answerer--the "normal" number of 46 chromosomes is the DIPLOID number, not the haploid. In egg and sperm cells, half the number is present, and this is known as the haploid number.

In some individuals, the diploid number is off; this is known as either a monosomy (only one of the usual pair is present), or a trisomy (3 copies, instead of two). The most well-known trisomy is Trisomy 21--3 copies of the 21st pair, otherwise known as Down Syndrome. This is not always obvious simply from counting chromosomes in a karyotype, as the extra material can be attached to another chromosome. Extra/missing X or Y chromosomes are other common genetic mistakes.

user profile pic

agasmith96 | Student , Grade 10 | Valedictorian

Posted November 17, 2011 at 5:16 PM (Answer #4)

dislike 9 like

 

Normal body cells (known as a haploid cells) contain 46 chromosomes (or 23 pairs of chormosomes).

Sources:

user profile pic

chavda211 | Student | Salutatorian

Posted March 2, 2012 at 5:14 AM (Answer #5)

dislike 9 like

There are 46 chromosomes in a cell. However if these were put into pairs then there would be half the number of single chromosomes- there would be 23 pairs.

user profile pic

gatsby94 | Student , Undergraduate | Honors

Posted May 18, 2012 at 2:30 PM (Answer #6)

dislike 9 like

there are 46 chromosomes in a cell and they are matched up in 23 pairs one of those pairs contains your genderchromosomes xy or xx

there are certain mutation such as down syndrome where you have 47 chromosomes or less than 46 chromosomes

user profile pic

crazynitin998 | Student , Grade 10 | Salutatorian

Posted May 27, 2012 at 5:08 AM (Answer #7)

dislike 8 like

23 pairs/ 46 individually

user profile pic

myfavouritehero | Student , Grade 10 | Honors

Posted May 30, 2012 at 3:32 PM (Answer #9)

dislike 8 like

A normal human body contains exactly 46 (23 pairs) of chromosomes.

user profile pic

hina0000 | Student , Grade 9 | Honors

Posted January 26, 2012 at 5:38 PM (Answer #10)

dislike 7 like

some humans may have 45 or 47 chromosomes due to mutation or genetic disorder but normally humans (the majority) have 46 chromosoms

user profile pic

thisuserhasmadeabadusername | Student , Grade 10 | Valedictorian

Posted May 25, 2012 at 1:42 PM (Answer #11)

dislike 7 like

46 chromosomes, or 23 pairs in a body cell

A gamate, or sex cell only has 23 chromosomes.

user profile pic

nikitasingh | Student , Grade 10 | Honors

Posted May 29, 2012 at 10:55 AM (Answer #8)

dislike 7 like

there are in total 46 chromosomes in an average human body which is also 23 pairs.

user profile pic

shruthiblues27 | Student | Honors

Posted June 7, 2012 at 11:11 AM (Answer #14)

dislike 7 like

There are 23 pairs(46 chromosones)of chromosones in a human body cell.

In females the sex chromosone is XX and in males it is XY

user profile pic

garimagupta2210 | Student , Undergraduate | eNoter

Posted June 10, 2012 at 11:26 AM (Answer #15)

dislike 7 like

There are 46 chromosomes in a cell and they are matched up in 23 pairs one of those pairs contains your gender chromosomes xy or xx

there are certain mutation such as down syndrome where you have 47 chromosomes or less than 46 chromosomes

user profile pic

debashreebanerjee | Student , Grade 10 | Honors

Posted June 14, 2012 at 10:53 AM (Answer #16)

dislike 7 like

There are 22 pairs of autosomes( chromosomes which are responsible for any feature in the body other than sex determination) and 1 pair of allosomes or sex chromosomes( wwhich determines the sex of an individual). Therefore there is a total of 23 pairs of chromosome in a human body cell.

However the human gametes formed by meiosis have haploid number of chromosomes i.e. they have only 23 chromosomes instead of 46; so that after fertilization the zygote has 23 pairs of chromosome(23 from the sperm and 23 from the ovum).

user profile pic

elekzy | Student , Grade 11 | Valedictorian

Posted March 17, 2012 at 2:23 PM (Answer #17)

dislike 6 like

There are 46 chromosomes in the human body.

 

user profile pic

loraaa | Student | Valedictorian

Posted March 21, 2012 at 8:36 AM (Answer #18)

dislike 6 like

46 chromosomes.

user profile pic

the-infinite-being | Student , Grade 10 | eNoter

Posted May 22, 2012 at 10:43 PM (Answer #19)

dislike 6 like

we have 46 chromosones; 23 pairs

user profile pic

melonsmasher | Student , Grade 9 | Valedictorian

Posted June 3, 2012 at 9:19 AM (Answer #13)

dislike 6 like

A human body consists of 46 chromosomes in each sex cell.

user profile pic

satavisha | Student , Grade 9 | eNoter

Posted June 6, 2012 at 4:45 AM (Answer #21)

dislike 6 like

There are 23 pairs of chromosomes out of which 22 pairs are autosomes and one pair is sex chromosome.

In males, the sex chromosome is XY while in females it is XX.

user profile pic

nirmita | Student , Grade 10 | Honors

Posted June 14, 2012 at 6:15 AM (Answer #22)

dislike 6 like

The number of chromatin fibres in our body is 46 but during the time of cell division these fibres become thick and ribbon like. At that these fibres are known as chromosomes and there are 23 pairs of chromosomes present in our body cells.

In case of mitosis the division takes place after duplication of the fibres but in case of meiosis the 46 chromatin are reduced into 23 chromatins and during the time of fusion of the two gametes(egg cell and sperm) the number 46 is maintained.

Meaning, 23 chromatins from the egg cell and 23 from the sperm. after the process of meiosis the process of mitosis is carried out.

user profile pic

adi12 | eNoter

Posted June 18, 2012 at 7:59 PM (Answer #23)

dislike 6 like

Both the mother and father contribute 23 pairs to the offspring in total this makes it 46 chromosomes.

user profile pic

sanjeetmanna | College Teacher | (Level 3) Assistant Educator

Posted June 20, 2012 at 10:39 PM (Answer #24)

dislike 6 like

There are 46 chromosomes that is 23 pairs of chromosomes that is 22 pair of autosomes and 1 pair of sex chromosomes.

user profile pic

chaobas | College Teacher | Valedictorian

Posted June 26, 2012 at 9:54 PM (Answer #25)

dislike 6 like

Now different species have different set of chromosomes. For HUman (Homo sapien), there are 23 pairs (46) chromosomes. it can be consider as 22+XY(male) or 22+XX(female). here the XY are consider as sex choromosopmes as they help in determining the sex and 22 pairs are consider as autosomes.

user profile pic

mony12 | Student , Grade 9 | eNoter

Posted July 15, 2012 at 5:27 PM (Answer #26)

dislike 6 like

46 Chromosomes or 23 pairs (depends on your way of looking at it):

Think of chromosomes as chapters of a cookbook. You have a total of 46 but you have 2 copies of each chapter, so 23 pairs:

1 1

2 2

3 3

and so on.

user profile pic

angelsallu | Student , Grade 9 | Honors

Posted October 15, 2012 at 5:43 PM (Answer #27)

dislike 6 like

There are 46 chromosomes (23 pairs) in a human body cell with the exception of the sex cells. One of each pair is inherited from the mother's egg, the other from the father's sperm. When the sperm and egg unite in fertilization, they create a single cell, or zygote, with 46 chromosomes.

When cell division occurs, the 46 chromosomes are duplicated and the process is repeated billions of times over, with each of the cells containing the identical set of chromosomes. Only the gametes, or sex cells, are different. In their cell division, the members of each pair of chromosomes are separated and distributed to different cells. Each gamete has only 23 chromosomes.

Chromosomes contain thousands of genes that have information for a specific trait. That information is in the form of a chemical code, and the chemical compound that codes this genetic information is deoxyribonucleic acid or DNA.

A gene can be seen as a sequence of DNA that is coded for a specific protein. These proteins determine specific physical traits (such as height, body shape, color of hair, eyes and skin), body chemistry (blood type and metabolic functions) and some aspects of behavior and intelligence.

More than 150 human disorders are inherited and genes are thought to determine susceptibility to many diseases.

user profile pic

pororohandy | Student | Valedictorian

Posted June 19, 2012 at 4:17 AM (Answer #28)

dislike 5 like

In a sex cell consists of 46 chromosomes in a body.

A human body consists of 46 chromosomes in each sex cell.

user profile pic

hmshah98knic | Student , Grade 9 | Honors

Posted June 24, 2012 at 6:44 AM (Answer #30)

dislike 5 like

There are 46 chromosomes in all i.e. 23 pairs of chromosomes.

there are 22 pairs of auto somes and 1 pair of sex chromosomes. So all toghether thre are 23 pairs of chromosomes.

user profile pic

manish001 | Student , Undergraduate | eNoter

Posted July 4, 2012 at 1:56 PM (Answer #31)

dislike 5 like

In Human being,there are 23 pairs(46) chromosomes in which 22 pairs are autosomes and remaining 1pair is sex chromosome which determines the sex of Human being.

user profile pic

ayamshrestha | Student , Grade 9 | Honors

Posted July 5, 2012 at 1:56 PM (Answer #32)

dislike 5 like

There are two types of cromosomes 'X' and 'Y'. each consisting of 23 pairs . and the sum of both type make 46 .

user profile pic

rohanlekhwani | Student , Grade 9 | Honors

Posted July 6, 2012 at 6:08 PM (Answer #33)

dislike 5 like

There are 23 pairs (46) chromosomes in a single cell (animal)

user profile pic

aarushrao | Student , Grade 9 | eNoter

Posted July 8, 2012 at 5:56 PM (Answer #34)

dislike 5 like

There are 46 chromosome in the human body cell.

23 each from mom and dad

user profile pic

susdas | Student , Grade 10 | Honors

Posted July 11, 2012 at 5:02 PM (Answer #35)

dislike 5 like

Inside nearly all cells there is a nucleus.The nucleus contains thread-like Chromosomes.These chromosomes carry the genes that control all your characteristics.

There are 23 pairs or 46 chromosomes inside a human cell

19 pairs or 38 chromosomes inside a cat cell.

user profile pic

dikshasamsukha | Student , Grade 10 | Honors

Posted July 20, 2012 at 12:26 PM (Answer #36)

dislike 4 like

 

Somatic cells (body cells) are haploid cells . They have 23 pairs of chromosomes. Reproductive cells (gametes) have half the normal number i.e. 23. This is because two gametes (one male and one female) have to fuse hence, restoring the original number of 23 pairs.

user profile pic

p0tat03 | Student , Grade 11 | eNoter

Posted July 28, 2012 at 8:46 AM (Answer #37)

dislike 4 like

23 pairs, however, males have 22 pairs as they have an X and Y chromosome.

user profile pic

dananagoud | Student , Grade 9 | eNoter

Posted July 30, 2012 at 2:33 PM (Answer #38)

dislike 4 like

there are 46 chromosomes in human body ie 23 pairs. 22 pairs are called atosomes, the last pair is called alosomes or sexchromosomes.

user profile pic

leenaarun | eNoter

Posted August 1, 2012 at 7:07 AM (Answer #39)

dislike 4 like

There is 23 pairs of chromosomes. 22 pairs are called autosomes and 23rd pair determines the sex of the individual whether male or female so called sex chromosomes. Male will have XY chromosome and females will have XX chromosome.

Generally X chromosome inherited from the mother to the child and the sex of the child is decided based on the combination of chromosome obtained from the father.

X acts dominant whereas Y as recessive. If there is any alteration in the number of chromosomes the resulting child will have congenital abnormality

user profile pic

jjrichardson | Student , College Freshman | Valedictorian

Posted August 19, 2012 at 2:37 AM (Answer #40)

dislike 4 like

46 chromosomes total; 23 pairs.

user profile pic

nancy167 | College Teacher | Salutatorian

Posted August 21, 2012 at 4:23 PM (Answer #41)

dislike 4 like

Chromosome is a thread like structure of DNA and proteins present in the cell. It is a small piece of DNA containing nucleotides and genes. In our body, there are 22 pairs of autosomes and 1 pair of sex chromosomes for a total of 23 pairs or 46 chromosomes. The 23rd pair, the sex chromosomes, differ between males and females. Females have two copies of the X chromosome, while males have one X and one Y chromosome. 

Sources:

user profile pic

vinuri | Student , Grade 9 | eNoter

Posted August 23, 2012 at 12:02 PM (Answer #42)

dislike 4 like

chromosomes are thread like structures. they are in pairs. in a somatic cell(normal body cell) there are 46 chromosomes.but in haploid cell or gametes (ova and sperm) have 23 chromosomes.

user profile pic

adematteo15 | Student , Grade 10 | eNoter

Posted August 25, 2012 at 7:47 PM (Answer #43)

dislike 4 like

There are 46 chromosomes (23 pairs) in a human body cell with the exception of the sex cells. One of each pair is inherited from the mother's egg, the other from the father's sperm. When the sperm and egg unite in fertilization, they create a single cell, or zygote, with 46 chromosomes.

When cell division occurs, the 46 chromosomes are duplicated and the process is repeated billions of times over, with each of the cells containing the identical set of chromosomes. Only the gametes, or sex cells, are different. In their cell division, the members of each pair of chromosomes are separated and distributed to different cells. Each gamete has only 23 chromosomes.

Sources:

user profile pic

hello9797 | Student , Grade 10 | eNoter

Posted August 27, 2012 at 4:17 PM (Answer #44)

dislike 4 like

In humans there are 46 chromosomes you get 23 from your father and 23 from your mother.

user profile pic

funnychoco92 | Student , Undergraduate | eNoter

Posted August 30, 2012 at 2:00 AM (Answer #45)

dislike 4 like

there are 23 pairs of double stranded DNA chromosomes 22 pairs are autosomes and 2 chromosomes identifies your sex identity. 23 different pairs are from your mom and the other 23 are from your dad.

user profile pic

me1tsush | Student , Grade 12 | Salutatorian

Posted September 1, 2012 at 4:10 PM (Answer #46)

dislike 4 like

44 chromosomes 2 sex chromosomes . also can said 23 pairs 0f chromosomes

user profile pic

sanalionheart | Student , Undergraduate | eNoter

Posted September 9, 2012 at 12:14 PM (Answer #47)

dislike 4 like

basically, in a normal human, there are 46 chromosomes in 23 pairs. but in some cases or abnormal cases, an extra chromosome on number 21 appears which makes the chromosomes with total of 47, which is clear case of down syndrome. 

user profile pic

krishnakarthika | Student , Grade 10 | eNoter

Posted September 15, 2012 at 5:50 AM (Answer #48)

dislike 4 like

46 chromosomes,i.e. 23 pairs,out of which 22 pairs deal with body characters(autosomes) and the last pair determines gender(allosomes).

user profile pic

guigs97 | Student , Grade 10 | eNoter

Posted September 22, 2012 at 2:49 PM (Answer #49)

dislike 4 like

There are 46 chromosomes, seperated into 23 pairs, including the chromosomes X and Y. Men have the chromosomes X and Y, and women have X and X.

user profile pic

shanaxx | Student , Grade 9 | eNoter

Posted October 8, 2012 at 11:10 AM (Answer #50)

dislike 4 like

a cell has $6 chromosones.23 chromosones are present in male organ and 23 are present in female organ

user profile pic

rohankapoor | Student , College Freshman | Honors

Posted October 20, 2012 at 5:24 AM (Answer #51)

dislike 4 like

23 pairs of chromosomes

i.e. 22 pairs of autosomes and 1 pair of sex chromosome(XX or XY)

user profile pic

luiji | Student , Grade 11 | Salutatorian

Posted October 29, 2012 at 7:55 AM (Answer #52)

dislike 4 like

In every cell in the body apart from the sex cells (gametes) there are 23 pairs of chromosomes, 46 all together.

However, sometimes during meiosis a pair of chromosomes doesn't split so the offspring has an extra, or a missing chromosome. In these cases, syndromes like Downs sydrome or Edwards sydrome can occur.

The sex cells (gametes) have 23 chromosomes in them. This is called haploid. You get haploid and diploid. Diploid is when there is the full amount of chromosomes in the cells, and haploid is when there is half. Remember it as HAploid = HAlf.

user profile pic

falsefantasy | Student , Grade 9 | Salutatorian

Posted April 24, 2012 at 12:28 PM (Answer #53)

dislike 3 like

There are 23 pairs or 46 chromosomes inside a human cell.

user profile pic

pororohandy | Student | Valedictorian

Posted June 3, 2012 at 9:38 AM (Answer #54)

dislike 3 like

In a sex cell consists of 46 chromosomes in a body.

user profile pic

dartharceus | Student , Undergraduate | Honors

Posted June 12, 2012 at 1:44 PM (Answer #55)

dislike 3 like
46
user profile pic

jeremydodson | Student , Grade 10 | Salutatorian

Posted June 17, 2012 at 5:48 PM (Answer #56)

dislike 3 like

23 pairs of chromosomes or 46 in all.

user profile pic

nikitasingh | Student , Grade 10 | Honors

Posted August 18, 2012 at 5:14 AM (Answer #60)

dislike 3 like

in total there are 46 chromosomes or 23 pairs in the human body out of which 1 pair of chromosome determones the sex of the human and the rest carry information for the formation of a human body.

user profile pic

teamreadit | Student , Grade 10 | eNoter

Posted October 24, 2012 at 5:53 AM (Answer #61)

dislike 3 like

there are 46 chromosomes in the diploid condition and 23 cromosomes occur in pairs in the human cell.

user profile pic

plshelpme | Student , Grade 10 | Valedictorian

Posted November 4, 2012 at 5:19 PM (Answer #62)

dislike 3 like

There are 46 chromosomes (23 pairs) in a human body cell with the exception of the sex cells. One of each pair is inherited from the mother's egg, the other from the father's sperm. When the sperm and egg unite in fertilization, they create a single cell, or zygote, with 46 chromosomes.

When cell division occurs, the 46 chromosomes are duplicated and the process is repeated billions of times over, with each of the cells containing the identical set of chromosomes. Only the gametes, or sex cells, are different. In their cell division, the members of each pair of chromosomes are separated and distributed to different cells. Each gamete has only 23 chromosomes.

Chromosomes contain thousands of genes that have information for a specific trait. That information is in the form of a chemical code, and the chemical compound that codes this genetic information is deoxyribonucleic acid or DNA.

A gene can be seen as a sequence of DNA that is coded for a specific protein. These proteins determine specific physical traits (such as height, body shape, color of hair, eyes and skin), body chemistry (blood type and metabolic functions) and some aspects of behavior and intelligence.

More than 150 human disorders are inherited and genes are thought to determine susceptibility to many diseases.

user profile pic

ebiano | Student , Grade 11 | eNoter

Posted November 5, 2012 at 3:38 PM (Answer #63)

dislike 3 like

Normal human have 46 cromosomes these are all pared up so it becomes 23 pairs of xx and xy. Sometimes due to a genetic disorder or a mutation a pearson might have more or less.

 

user profile pic

mwalim | Student , Undergraduate | eNoter

Posted November 8, 2012 at 11:34 AM (Answer #64)

dislike 3 like

A human body cell has 46 chromosomes (23 pairs) with the exception of the sex cells. One of each pair is inherited from the mother's egg, the other from the father's sperm. When the sperm and egg unite in fertilization, they create a single cell, or zygote, with 46 chromosomes.

Sources:

user profile pic

smartypants132 | Student , Grade 9 | eNoter

Posted June 30, 2012 at 11:52 AM (Answer #68)

dislike 2 like

There are 46 chromosomes in all i.e. 23 pairs of chromosomes.

user profile pic

prashantl | Student , Grade 9 | Honors

Posted July 2, 2012 at 1:15 PM (Answer #69)

dislike 2 like

There are 23 pairs of chromosomes i.e. 46 chromosomes in the human body cell.

user profile pic

podar10 | Student , Grade 10 | eNoter

Posted July 3, 2012 at 1:07 PM (Answer #70)

dislike 2 like

There are 23 pairs of chromosomes in the human body cell.

user profile pic

suprabhatdas | Student , Grade 10 | Honors

Posted July 14, 2012 at 2:13 AM (Answer #76)

dislike 2 like

23 pairs....

 

user profile pic

awishikha | Student , Grade 10 | Honors

Posted July 27, 2012 at 5:46 AM (Answer #78)

dislike 2 like

23 PAIRS

user profile pic

babypink1710 | Student , Grade 9 | eNoter

Posted July 27, 2012 at 11:08 AM (Answer #79)

dislike 2 like

The number of chromosomes is definite in each species. Every human body cell has 46 i.e 23 pairs of chromosomes.

user profile pic

ivy-reads | Student , Grade 9 | eNoter

Posted August 10, 2012 at 8:43 PM (Answer #85)

dislike 2 like

there are 46 chromosomes in your human body, 23 pairs which are inherited from your parents. 

user profile pic

bevlyn | Student , Undergraduate | eNoter

Posted August 11, 2012 at 9:30 AM (Answer #86)

dislike 2 like

46 chromosomes ,22 pairs of autosomes and 1 pair of sex chromosomes.

user profile pic

dipsie637 | Student , Grade 10 | eNoter

Posted August 12, 2012 at 3:35 AM (Answer #88)

dislike 2 like

there are 46 chromosomes which is 23 pairs of chromosomes in a human body cell....and the number differs from species to species

user profile pic

ithj | Student , Grade 10 | eNoter

Posted August 12, 2012 at 10:25 AM (Answer #58)

dislike 2 like

23 pairs of chromosomes

46,in all

user profile pic

smart-kavya | Student , Grade 11 | Valedictorian

Posted August 23, 2012 at 1:35 PM (Answer #91)

dislike 2 like

46

user profile pic

mad-e | Student , Grade 10 | Honors

Posted August 31, 2012 at 2:37 PM (Answer #92)

dislike 2 like

There are 46 chromosomes...

user profile pic

kathytieu8479 | Student , Grade 10 | eNoter

Posted September 9, 2012 at 2:20 AM (Answer #93)

dislike 2 like

46 :)

user profile pic

nicoledesilva | Student , Grade 9 | Salutatorian

Posted September 10, 2012 at 11:56 AM (Answer #94)

dislike 2 like

There are 23 pairs of chromosomes.

user profile pic

krishnasis123 | Student , Grade 9 | Honors

Posted September 12, 2012 at 4:19 AM (Answer #95)

dislike 2 like

46 chromosomes .... or 23 pairs :) 

user profile pic

sarahokoth | Student , Grade 9 | Honors

Posted September 14, 2012 at 10:16 AM (Answer #96)

dislike 2 like

their are 46 chromosomes or 23 pairs:

user profile pic

basilfrizz | Student , Grade 11 | eNoter

Posted September 16, 2012 at 3:44 PM (Answer #97)

dislike 2 like

46 Chromosomes in the body, paired up to make 23 pairs.


For more information try GCSE BBC Bitesize :)

user profile pic

yuhao | Student , Grade 9 | eNoter

Posted September 18, 2012 at 12:59 PM (Answer #98)

dislike 2 like

46 (23 pairs)

user profile pic

brigettegalvez | Student , Grade 10 | eNoter

Posted September 21, 2012 at 7:17 PM (Answer #99)

dislike 2 like

46 chromosomes

 

user profile pic

ziba24 | Elementary School Teacher | eNoter

Posted September 26, 2012 at 7:26 PM (Answer #100)

dislike 2 like

23 pairs.

user profile pic

alan588 | Student , Grade 10 | Honors

Posted October 2, 2012 at 5:32 PM (Answer #102)

dislike 2 like

46 in total

23 pairs

user profile pic

melaniecmartin225 | High School Teacher | eNoter

Posted October 3, 2012 at 5:39 PM (Answer #103)

dislike 2 like

There are a total of 46 (23 pairs) of chromosomes in a normal human cell.

user profile pic

bullbudder | Student , Grade 11 | Valedictorian

Posted October 8, 2012 at 12:44 PM (Answer #104)

dislike 2 like

23and 23 equals to 46 so there are 23 pairs of chromosomes

user profile pic

monkeygirlwow | Student , Grade 9 | eNoter

Posted October 11, 2012 at 11:43 PM (Answer #105)

dislike 2 like

46, 23 pairs

user profile pic

dinolove66 | Student , Grade 9 | eNoter

Posted October 15, 2012 at 12:19 AM (Answer #106)

dislike 2 like

There are 46 chromosomes in your body and in pairs there are 23 i did this for a science project aced it!

user profile pic

hmshah98knic | Student , Grade 9 | Honors

Posted October 25, 2012 at 2:05 PM (Answer #107)

dislike 2 like

There are 23 pairs or 46 chromosomes in a human body

user profile pic

chelceydoss | Student , Undergraduate | eNotes Newbie

Posted October 29, 2012 at 7:57 AM (Answer #108)

dislike 2 like

In a chromosomally normal human, there are 46 total chromosomes. 

user profile pic

science geek | Student , Grade 11 | Honors

Posted November 2, 2012 at 6:16 AM (Answer #109)

dislike 2 like

There are 23 pairs or 46 chromosomes in a human body

user profile pic

kathrina-pierce | Student , Grade 11 | Salutatorian

Posted November 20, 2012 at 4:53 PM (Answer #110)

dislike 2 like

46 chromosomes ie. 23 pairs of chromosomes.

user profile pic

aimeevd | eNoter

Posted January 12, 2013 at 10:36 PM (Answer #111)

dislike 2 like

23 pairs of chromosomes, which results in 46 chromosomes.  22 of the pairs are automsomes, while 1 pair in the sex chromosomes (which XX results in a female and XY results in a male).

I would like to clarify that sometimes people can have more or less than 46 chromosomes is not due to mutation, but rather nondisjunction.  Basically it is caused by improper division of chromosomes during meiosis.  The only time someone can survive from nondisjunction (result in a vilable baby) is when the person has an extra chromosomes 21, or an extra sex chromosomes.  Also one may survive with only 1 X chromosome or missing part of chromosome 5.

Extra chromosome 21:  Down Syndrome

Missing a partial Chromosome 5:  Cri du chat Syndrome (aka Cat's Cry)

XXX:  Tripe X Syndrome 

X: Turner's Syndrome

XYY:  XYY Syndrome 

XXY:  Klinefelter's Syndrome

 

user profile pic

user2185617 | Student | Honors

Posted January 17, 2013 at 12:06 AM (Answer #112)

dislike 2 like

46 celles in our body 23 each.

user profile pic

nalinidwivedi | Student , College Freshman | Honors

Posted January 23, 2013 at 1:10 PM (Answer #113)

dislike 2 like
46
user profile pic

wescarlyon337 | Student , Grade 10 | Salutatorian

Posted January 29, 2013 at 3:03 PM (Answer #115)

dislike 2 like

46 or 23 pairs

user profile pic

aquabubbles | Student | Honors

Posted January 31, 2013 at 4:23 AM (Answer #116)

dislike 2 like

46 (23 pairs). one from mom and one from dad. one pair identifies your sex

user profile pic

sparker454 | Student | Honors

Posted January 31, 2013 at 5:51 PM (Answer #117)

dislike 2 like

there are 46 chromozones for the normal persomn with no birth defects.

 

user profile pic

krimss | Student , Undergraduate | eNotes Newbie

Posted February 8, 2013 at 4:17 PM (Answer #118)

dislike 2 like

23 pairs

user profile pic

dreammmy | eNoter

Posted February 28, 2013 at 3:53 PM (Answer #122)

dislike 2 like

23 pairs

user profile pic

mscurry | eNoter

Posted March 4, 2013 at 6:55 PM (Answer #123)

dislike 2 like

Each person has 46 chromosomes in their cells.  each ovum egg and sperm carry 23.

user profile pic

nuradin | High School Teacher | eNoter

Posted March 12, 2013 at 6:26 PM (Answer #124)

dislike 2 like

well there are................

 

46 chromosomes in human's cell. And all these are in form of pairs ,so 23 pairs of chromosomes in human body cell.

 

 

user profile pic

marnieflores1976 | eNoter

Posted April 4, 2013 at 11:34 AM (Answer #127)

dislike 2 like

Human cells have 23 pairs of chromosomes (22 pairs of autosomes and one pair of sex chromosomes), giving a total of 46 per cell. In addition to these, human cells have many hundreds of copies.

user profile pic

arjun | College Teacher | Valedictorian

Posted April 11, 2013 at 4:15 AM (Answer #128)

dislike 2 like

46 chromosomes

user profile pic

user5726268 | eNoter

Posted April 11, 2013 at 7:49 PM (Answer #129)

dislike 2 like

there are total 46 chromosome in human body. in this 46 chromosome we have two type of chromosome-

1. autosome (found in diploid form)

2. sex chromosome(they are haploid)

there are 44 autosome or 22 pair of autosome and two individual sex chromosome, which result in 46 chromosome.

44+xx=46      or        44+xy=46

user profile pic

user8093254 | Student , Grade 10 | eNoter

Posted April 16, 2013 at 11:14 AM (Answer #130)

dislike 2 like

There are a total of 46 chromosomes, or 23 pairs.

user profile pic

amitde24 | eNoter

Posted April 16, 2013 at 11:21 AM (Answer #131)

dislike 2 like

There are 46 chromosomes in a human body, 23 pairs.

user profile pic

tubee | Student , Grade 10 | Salutatorian

Posted April 28, 2013 at 12:07 PM (Answer #133)

dislike 2 like

 


 

 

I have to correct the first answerer--the "normal" number of 46 chromosomes is the DIPLOID number, not the haploid. In egg and sperm cells, half the number is present, and this is known as the haploid number.

In some individuals, the diploid number is off; this is known as either a monosomy (only one of the usual pair is present), or a trisomy (3 copies, instead of two). The most well-known trisomy is Trisomy 21--3 copies of the 21st pair, otherwise known as Down Syndrome. This is not always obvious simply from counting chromosomes in a karyotype, as the extra material can be attached to another chromosome. Extra/missing X or Y chromosomes are other common genetic mistakes.

 
user profile pic

adarshanurag | Student , Grade 10 | Valedictorian

Posted June 23, 2013 at 2:47 PM (Answer #139)

dislike 2 like

23 pairs of chromosomes.

22 pairs are autosomes and 1 pair sex chromosomes

user profile pic

pororohandy | Student | Valedictorian

Posted June 21, 2012 at 4:18 AM (Answer #66)

dislike 1 like

46 chromosomes are inside the sex cell (23 pairs)

gud luck

good luck

user profile pic

television123 | Student , Grade 9 | Honors

Posted June 22, 2012 at 8:39 AM (Answer #67)

dislike 1 like

46

user profile pic

kshitijjauhri | Student , Grade 10 | eNoter

Posted July 6, 2012 at 6:58 AM (Answer #73)

dislike 1 like

46

 

user profile pic

aneesh123 | Student | Honors

Posted July 26, 2012 at 11:16 AM (Answer #77)

dislike 1 like

The human body cells have 22 pairs of autosomes

user profile pic

lisaderah | Student , Grade 11 | eNoter

Posted July 27, 2012 at 6:10 PM (Answer #80)

dislike 1 like

there are 23 chromosomes in the human body.

user profile pic

zeelshah177 | Student , Grade 9 | eNoter

Posted July 29, 2012 at 7:08 AM (Answer #82)

dislike 1 like

23

 

user profile pic

salmanameerassadi | Student , Grade 11 | Honors

Posted July 29, 2012 at 7:55 AM (Answer #83)

dislike 1 like

46

user profile pic

gohzhijie | Student , Grade 9 | eNoter

Posted August 6, 2012 at 2:42 AM (Answer #84)

dislike 1 like
There are 46 chromosomes
user profile pic

ajprincess | Student , Grade 10 | Valedictorian

Posted August 21, 2012 at 2:48 PM (Answer #90)

dislike 1 like

a normal body chromosome contains 46 chromosomes.... like 23 in pairs.....

user profile pic

noizmeka | Student , Undergraduate | eNoter

Posted October 24, 2012 at 9:21 AM (Answer #120)

dislike 1 like

46

 

user profile pic

aaana | Student , Undergraduate | Salutatorian

Posted May 2, 2013 at 5:26 AM (Answer #134)

dislike 1 like

23 pairs of chromosomes and total 46 choromosomes are present in a human cell.

 

user profile pic

user1065690 | Student , Grade 10 | eNotes Newbie

Posted May 5, 2013 at 6:17 PM (Answer #135)

dislike 1 like

Millions in the human body. Each cell has 23 pairs of chromosomes that have genetic importance. 22 of these are autosomes and one sex chromosome. The 22 determine traits and sex chromosomes determine the gender - XX develops into female and XY develops into male. Hence, there are (23 x 2) 46 chromosomes in the human cell.

user profile pic

sarahokoth | Student , Grade 9 | Honors

Posted June 4, 2013 at 4:41 PM (Answer #136)

dislike 1 like

46

user profile pic

gabrik99 | Student , Grade 9 | eNotes Newbie

Posted June 5, 2013 at 12:12 AM (Answer #137)

dislike 1 like

In a normal human cell there are 46 chromosomes. All of these chromosomes are in form of pairs , so there are basically 23 pairs of chromosomes in human body cell.

user profile pic

t-the-unpredictable | Student , Undergraduate | eNoter

Posted June 7, 2013 at 6:39 AM (Answer #138)

dislike 1 like

There are probably 23 pairs,a total of 46 chromosomes,in a human cell

user profile pic

redrose817 | Student , Undergraduate | eNoter

Posted July 13, 2013 at 2:44 PM (Answer #140)

dislike 1 like

Humans have 23 pair of chromosomes= 46 chromosomes 

user profile pic

jcarrol | Student , Grade 11 | eNoter

Posted July 13, 2013 at 6:29 PM (Answer #141)

dislike 1 like

There are 46 chromosomes, and it makes a pair of 23 chromosomes. 

user profile pic

sra | Student , Grade 11 | eNoter

Posted July 29, 2013 at 5:39 PM (Answer #142)

dislike 1 like

46 chromosomes, each 23 in pair.

user profile pic

nani2006 | Student , Grade 10 | Honors

Posted August 2, 2013 at 3:01 PM (Answer #143)

dislike 1 like

46 chromosomes

user profile pic

tut12 | Student , Grade 10 | eNoter

Posted August 3, 2013 at 10:16 PM (Answer #144)

dislike 1 like

46

user profile pic

bioeeyore | eNotes Newbie

Posted August 17, 2013 at 3:12 AM (Answer #145)

dislike 1 like

Normal somatic or body cells have 46 chromosomes (23 pairs).  Normal sex chromosomes have 23 chromosomes. 

user profile pic

saumya-dave | Student , Grade 7 | eNoter

Posted August 18, 2013 at 12:53 PM (Answer #146)

dislike 1 like

46 in a cell 23are from both of your parents.

user profile pic

selmasharafaz | College Teacher | (Level 3) Adjunct Educator

Posted August 20, 2013 at 12:01 PM (Answer #147)

dislike 1 like

46 chromosomes.

ie, 23 pairs of which 22 pairs are autosomes and 1 pair of sex chromosomes.

user profile pic

shruthiblues27 | Student | Honors

Posted June 15, 2012 at 12:40 PM (Answer #65)

dislike 0 like

26 pairs of chromosones(46 pairs)

user profile pic

zala96 | Student , Undergraduate | Honors

Posted August 28, 2012 at 11:50 AM (Answer #121)

dislike 0 like

There are 46 chromosomes in you - 23 pairs; 23 from your mum and 23 from you dad

user profile pic

rohankapoor | Student , College Freshman | Honors

Posted October 20, 2012 at 5:45 AM (Answer #119)

dislike 0 like

XX for female

XY for male.....

user profile pic

batchick | eNotes Newbie

Posted April 2, 2013 at 9:14 PM (Answer #125)

dislike 0 like

You guys are all wrong... The question was how many chromosomes are in a human cell, not the human body. If you wanted to know how many chromosomes were in the human body that is correct unless you have some sort of a defect. But each body cell only has 2 chromosomes making it a diploid. Each human gamete cell (Sex cell) has only one chromosome making it a haploid.

 

So to answer your question its 2 chromosomes.

user profile pic

harleyrm | Student , Grade 9 | eNoter

Posted April 20, 2013 at 11:00 PM (Answer #132)

dislike 0 like

46. 23 pairs

user profile pic

nikitasingh | Student , Grade 10 | Honors

Posted December 3, 2013 at 11:33 AM (Answer #148)

dislike 0 like

there are 46 chromosomes in a human body cell :

22 pairs are autosomes - related to character and body function 

1 pair of sex chromosomes _ related to the sex of the human involved

user profile pic

Yojana_Thapa | Student , Grade 10 | eNoter

Posted January 24, 2014 at 4:20 PM (Answer #149)

dislike 0 like

Human cells have 23 pairs of chromosomes.

user profile pic

laurto | Student , Grade 10 | eNoter

Posted January 25, 2014 at 12:30 AM (Answer #150)

dislike 0 like

There are 46 chromosomes (which can be paired to be 23 pairs) in a body cell.

"22 pairs of autosomes and one pair of sex chromosomes."

wikipedia.org

1 Reply | Hide Replies

user profile pic

laurto | Student , Grade 10 | eNoter

Posted January 25, 2014 at 12:32 AM (Reply #1)

dislike 0 like

I meant human cell!

user profile pic

parama9000 | Student , Grade 11 | Valedictorian

Posted January 29, 2014 at 12:08 PM (Answer #151)

dislike 0 like

There are 23 pairs that come from 2 parents, which makes 46 chromosomes.

user profile pic

Jyotsana | Student , Grade 10 | eNoter

Posted February 22, 2014 at 1:50 AM (Answer #152)

dislike 0 like

There are 23 pairs or 46 chromosomes in a human body cell.

user profile pic

atyourservice | Student , Grade 10 | eNoter

Posted March 16, 2014 at 1:34 AM (Answer #153)

dislike 0 like

46,   23 from the mother and 23 from the father.

user profile pic

nalinidwivedi | Student , College Freshman | Honors

Posted July 13, 2012 at 11:40 AM (Answer #75)

dislike -1 like

a normal human body cell contain 26 pairs of chromosomes or 46 chromosomes

user profile pic

ithj | Student , Grade 10 | eNoter

Posted August 12, 2012 at 10:24 AM (Answer #89)

dislike -1 like

23 pairs of chromosomes

43,in all

user profile pic

d771996 | Student , Grade 11 | Honors

Posted August 14, 2012 at 4:34 PM (Answer #59)

dislike -1 like

There are 26 pairs or 46 chromosomes in the human body.

user profile pic

iloveaskingalexandria | Student | eNoter

Posted August 12, 2012 at 3:24 AM (Answer #87)

dislike -2 like

46 chromosomes in total.

But 23 pairs come from each parent! 

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes