LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A-T, G-C
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A-A, C-C
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G-G, T-T
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A-G, C-T
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Detailed explanation-1: -G-C base pairs have 3 hydrogen bonds, while A-T base pairs have two. Therefore, double-stranded DNA with a higher number of G-C base pairs will be more strongly bonded together, more stable, and will have a higher melting temperature.
Detailed explanation-2: -Final answer: Adenine-Thymine is the correct base pairing for DNA molecules.
Detailed explanation-3: -The answer is that A-T and G-C pairs maximize the number of hydrogen bonds across the shared helical axis. A’s hydrogen donors can pair up with T’s hydrogen bond acceptors, and G’s hydrogen bond acceptors can pair up with C’s hydrogen bond donors. A-T and G-C are called complementary base pairs .
Detailed explanation-4: -The four bases in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T). These bases form specific pairs (A with T, and G with C).