THE MOLECULAR BASIS OF INHERITANCE
STRUCTURE OF NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How many bonds are between adenine and thymine or uracil?
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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: -Two hydrogen bonds form between adenine and thymine or adenine and uracil. Complementary pairs always involve one purine and one pyrimidine base *.
Detailed explanation-3: -It is a truth universally acknowledged that a guanine–cytosine (GC) base pair has three hydrogen bonds whereas adenine–thymine (AT) has two.
Detailed explanation-4: -STATEMENT-1 : Guanine unites with cytosine with three hydrogen bonds but it forms only one hydrogen bond with thymine.
Detailed explanation-5: -In RNA, uracil binds to adenine via two hydrogen bonds.
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