Questions
Which of the following statements is correct ?
a
Adenine pairs with thymine through one H-bond.
b
Adenine pairs with thymine through three H-bonds.
c
Adenine does not pair with thymine.
d
Adenine pairs with thymine through two H-bonds.
detailed solution
Correct option is D
In a ds DNA adenine pair with thymine through 2H bonds while cytosine pairs with guanine through 3H bonds and vice-versa. As a result, always a purine comes opposite to a pyrimidine. This generates approximately uniform distance between the two strands of the helixTalk to our academic expert!
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