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 uses deoxyribose sugar, RNA uses sugar ribose
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DNA pairs Adenine with Uracil, RNA pairs Adenine with Thymine
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DNA is a double helix, RNA is a single helix
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DNA pairs Adenine with Thymine, RNA pairs Adenine with Uracil
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Detailed explanation-1: -DNA and RNA are nearly identical polymers of nucleotides, except for the base pairs. DNA contains thymine while the same is substituted with uracil in RNA.
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: -Answer and Explanation: The correct answer is: (c) DNA contains alternating sugar-phosphate molecules whereas RNA does not contain sugars.
Detailed explanation-4: -DNA and RNA base pairing is slightly different since DNA uses the bases adenine, thymine, cytosine, and guanine; RNA uses adenine, uracil, cytosine, and guanine. Uracil differs from thymine in that it lacks a methyl group on its ring.