Which of the following disorders can occur in both males and females? a)Dyslexia b)Fragile X Syndrome c)Klinefelter's syndrome d)Turner syndrome

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maadhav19 | College Teacher | (Level 2) Assistant Educator

Posted on

The first question to consider is how these disorders are related to genetics, and whether they are inheritable specifically in relation to the X and Y chromosomes. Just for review, females have two X chromosomes (one from each parent) while men have an X (from their mother) and a Y (from their father).

1. Dyslexia is thought to have a genetic component, but is not related to the X or Y chromosomes, and has been observed in both men and women.

2. In Fragile X Syndrome a mutation on the X chromosome leads to problems in mental development. Since both males and females have X chromosomes, both may have the syndrome, but it is far more common in men. This is because women have a second X chromosome which reduces the effects of the mutation in the other X chromosome.

3. Klinefelter's Syndrome is the case in which males have an extra X chromsome. So instead of having an XY combination, these males have an XXY combination.

4. Finally, in Turner's Syndrome a female has only one X chromosome; the other is missing, leading to abnormalities in physical development.

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mkcapen1 | Middle School Teacher | (Level 3) Valedictorian

Posted on

Dyslexia is more common in males but can also occur for females.  It is a condition that results in the letters being reversed and changed making it difficult for someone to be able to read.

Fragile X syndrome is a male condition that occurs due to gene alterations and is an inherited disorder.  People with Fragile X are often affected intellectually and some exhibit violent outbursts.

Klinefelter's syndrome is related to chromosomal changes.  In males they have an extra X sex chromosome.  They usually have small testicles and penis size and difficulty with fertility.  This is a male oriented disorder.

Turner syndrome is a female condition.  The female does not have the set of two X chromosomes. They often experience a delayed puberty, have a short neck and smaller breasts.


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