A) 19.04 Å
B) 190.4 Å
C) 1904 Å
D) 190.4 nm
Correct Answer: B
Solution :
If the hydrogen bonds between two strands of a fragment of DNA double helix is 135, then hydrogen bonds between guanine and cytosine is \[\text{(}23\times 3\text{) }69\] (as, GC pairs with three hydrogen bonds). \[\therefore \] The adenine nitrogen bases \[=69-135=66\div 2=33\] The total nitrogen bases = 56 Distance between one \[bp=3,4{\AA}\] \[\therefore \]Total length \[=56\times 3.4=190.4\text{ }{\AA}\]You need to login to perform this action.
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