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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DNA is a double stranded molecule while RNA single stranded
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DNA has thymine while uracil replaces thymine in RNA
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DNA has ribose as its sugar while RNA has deoxyribose
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DNA codes for making one polypeptide chain while RNA codes for making thousands of proteins
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Detailed explanation-1: -RNA contains uracil, while DNA contains thymine. Explanation: RNA is different than DNA in that it 1) is single stranded (DNA is double stranded), 2) contains uracil (DNA contains thymine instead), and 3) contains a ribose sugar (DNA contains a deoxyribose sugar).
Detailed explanation-2: -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-3: –Thymine is replaced by the uracil which is complementary to adenine. Hence, the correct answer is option (D). Note: The function of uracil and the thymine are the same, the production of uracil is energetically more feasible, where an additional methyl group is added in order to convert the thymine to the uracil.