GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ribose Sugar
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Thymine
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Guanine
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Cytosine
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Detailed explanation-1: -Uracil is present only in RNA, whereas thymine is present only in DNA. Thus, thymine is the nitrogenous base which is not present in RNA.
Detailed explanation-2: -Answer and Explanation: The correct option is b. thymine. Thymine is not present in RNA.
Detailed explanation-3: -Final Answer: (c) RNA evolves slowly.
Detailed explanation-4: -There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
Detailed explanation-5: -2. Which of the following are not the components of RNA? Explanation: Thymine is present in DNA but not in RNA.