THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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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 but not in DNA?
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adenine
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uracil
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guanine
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thymine
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Explanation:
Detailed explanation-1: -Uracil is present in RNA but not in DNA.
Detailed explanation-2: -Answer and Explanation: The nitrogenous base that is found in RNA but not in DNA is c. uracil.
Detailed explanation-3: -Because thymine has a higher resistance to photochemical mutation and makes the genetic code more durable, DNA uses it instead of uracil.
Detailed explanation-4: -So, the correct option is ‘RNA contains ribose. ‘
Detailed explanation-5: -Uracil is one of four nitrogen bases, most frequently found in normal RNA. Uracyl can be found also in DNA as a result of enzymatic or non-enzymatic deamination of cytosine as well as misincorporation of dUMP instead of dTMP during DNA replication.
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