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are nucleotide bases the same thing as nitrogenous bases?iv seen the bases called both...
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A nucleotide is a structural subunit that makes up DNA, much like a brick is the structural subunit that makes up a brick wall. Every nucleotide in DNA contains a five carbon sugar deoxyribose, a phosphate group and one of four nitrogenous bases--adenine, guanine, cytosine and thymine. Therefore, there are four different nucleotides in DNA--one with the nitrogenous base adenine, one with guanine, one with cytosine and one with thymine. RNA is also composed of nucleotides, but the five carbon sugar is called, ribose, and there are four possible nitrogenous bases--adenine, guanine, cytosine and uracil.
Posted by trophyhunter1 on August 15, 2012 at 11:41 PM (Answer #1)
Nitrogen Bases are...
Adenine, Guanine, Cytosine, Uracil (In RNA in place of Thymine), Thymine.
Adenine and Guanine are Purines pyrimidines
Cytosine, Uracil and Thymine are pyrimidines.
Nitrogen base + sugar.
Adenine + sugar = Adenosine
Guanine + sugar = Guanosine
Cytosine + sugar = Cytidine
Uracil + sugar = uridine
Thymine + sugar = Thymidine
In DNA it is deoxyribose sugar and in RNA it is ribose sugar.
Nitrogen base + sugar + phosphate group.
If one phosphate group is attached then it will form Mononucleotide.
Example AMP = adenosine monophosphate.
Mononucleotides are the building blocks of DNA and RNA.
Posted by sanjeetmanna on August 16, 2012 at 5:18 AM (Answer #2)
One of the nitrogenous bases( adenine, guanine, cytosine, thymine). One nucleotide is composed of a base, a deoxyribose sugar, and a phoshate. There are four types of nucleotides because there are four types of bases.
Sugar and phoshphates A nitrogenous base is a part of a nucleotide. In DNA, the primary nitrogenous bases are adenine, guanine, cytosine, and thymine.
A nucleotide is a strand of DNA or RNA that consists of genetic materials in the form of chromosomes. DNA itself is made up of alternating phosphate and sugar. Example AMP = adenosine monophosphate.
Posted by nancy167 on August 16, 2012 at 6:39 PM (Answer #3)
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