OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Number of hydrogen bonds between adenine and thymine?
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1
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2
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3
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4
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Explanation:
Detailed explanation-1: -The Adenine-Thymine base pair is held together by 2 hydrogen bonds while the Guanine-Cytosine base pair is held together by 3 hydrogen bonds.
Detailed explanation-2: -Adenine always forms two hydrogen bonds with Thymine (in case of DNA) and Uracil (in case of RNA) while Cytosine always forms three hydrogen bonds with Guanine.
Detailed explanation-3: -Adenine-uracil base pairs, or AU base pairs, are held together by 2 hydrogen bonds. Guanine-cytosine base pairs, or GC base pairs, are held together by 3 hydrogen bonds.
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