THE MOLECULAR BASIS OF INHERITANCE
THE SEARCH FOR INHERITABLE MATERIAL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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C-A, T-G
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A-G, C-T
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C-G, U-A
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T-A, G-C
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Detailed explanation-1: -Thus, the correct answer is option (A) Adenine – Thymine and Guanine – Cytosine.
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 bases are the “letters” that spell out the genetic code. In DNA, the code letters are A, T, G, and C, which stand for the chemicals adenine, thymine, guanine, and cytosine, respectively. In base pairing, adenine always pairs with thymine, and guanine always pairs with cytosine.
Detailed explanation-5: -The correct option is C The complementary DNA strand of the sequence ATGC will be TACG. The complementary base pairing in DNA is as per the Chargaff’s rules. According to these rules, purines always hydrogen bond with pyrimidines and vice-versa. Thus, adenine always hydrogen bonds with thymine by two hydrogen bonds.