BIOLOGY
NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Purines
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Pyramidines
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Either A or B
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None of the above
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Detailed explanation-1: -Pyrimidine: A nitrogenous base similar to benzene (a six-membered ring) and includes cytosine, thymine, and uracil as bases used for DNA or RNA.
Detailed explanation-2: -One of two chemical compounds that cells use to make the building blocks of DNA and RNA. Examples of pyrimidines are cytosine, thymine, and uracil.
Detailed explanation-3: -The purine nitrogenous bases are characterized by their single amino group (−NH 2), at the C6 carbon in adenine and C2 in guanine. Similarly, the simple-ring structure of cytosine, uracil, and thymine is derived of pyrimidine, so those three bases are called the pyrimidine bases.
Detailed explanation-4: -Cytosine and thymine are two types of nitrogenous bases in nucleotides, which build nucleic acids. The other nitrogenous bases found in nucleic acids are adenine, guanine, and uracil. Uracil is only found in RNA and is involved in protein synthesis.