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Question
Identify (A) and (B) in the given image.
Identify (A) and (B) in the given image.
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Solution
The correct option is B (A) Thymine, (B) Cytosine
In the structure of DNA, to each sugar ring there is a nucleotide base attached which is one of the four bases, Adenine (A), Guanine (G), Cytosine (C) and Thymine (T). They are paired to each other in such a way it's always A-T or C-G. The nucleotides in a base pair are complementary which means their shape allows them to bond together with hydrogen bonds. The A-T pair forms two hydrogen bonds. The C-G pair forms three. The hydrogen bonding between complementary bases holds the two strands of DNA together.
In the structure of DNA, to each sugar ring there is a nucleotide base attached which is one of the four bases, Adenine (A), Guanine (G), Cytosine (C) and Thymine (T). They are paired to each other in such a way it's always A-T or C-G. The nucleotides in a base pair are complementary which means their shape allows them to bond together with hydrogen bonds. The A-T pair forms two hydrogen bonds. The C-G pair forms three. The hydrogen bonding between complementary bases holds the two strands of DNA together.
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