GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is found in RNA nucleotides but not in DNA nucleotides?
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Nitrogen-containing base
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Phosphate group
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Ribose sugar
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Deoxyribose sugar
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Explanation:
Detailed explanation-1: -Uracil is never a part of nucleotide of DNA. It is present in RNA.
Detailed explanation-2: -Uracil is present in RNA but not in DNA.
Detailed explanation-3: -Uracil is found only in RNA and not in DNA.
Detailed explanation-4: -Correct answer: Uracil is a nitrogenous base that is only found in single-stranded RNA-it is not found in DNA. Thymine pairs with adenine in DNA, whereas in RNA, uracil pairs with adenine.
Detailed explanation-5: -Sugar. Both DNA and RNA are built with a sugar backbone, but whereas the sugar in DNA is called deoxyribose (left in image), the sugar in RNA is called simply ribose (right in image).
There is 1 question to complete.