In a 136 nm long B-DNA molecule adenine constitute 
. How many hydrogen bonds would be present between the strands?
Text Solution
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Length of 10 base pairs 
Let total number of base pairs be 
, then
base pairs 
Total no. of base pairs 
bases
According to Chargaff's rule,
Adenine 
Thus, total number of adenine molecules 
Total number of adenine and thymine molecules 
Similarly, guanine 
Thus, total number of guanine and cytosine molecules 
We know that, 
double bond
triple bond
Number of hydrogen bonds 
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