How many nucleotide pairs are present in one | vedclass

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(B) In the $B-DNA$ model proposed by Watson and Crick,the structure of the double helix is characterized by specific dimensions.One full turn of the $

Vedclass · Accepted Answer

$10$

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(B) In the $B-DNA$ model proposed by Watson and Crick,the structure of the double helix is characterized by specific dimensions.One full turn of the $DNA$ helix,also known as the pitch,measures approximately $3.4 \ nm$ $(34 \ \mathring{A})$.The distance between two adjacent base pairs is $0.34 \ nm$ $(3.4 \ \mathring{A})$.Therefore,the number of nucleotide pairs per turn is calculated as: $\frac{3.4 \ nm}{0.34 \ nm} = 10$.Thus,there are $10$ nucleotide pairs in one full turn of the $DNA$ helix.

How many nucleotide pairs are present in one full turn of the $DNA$ helix?

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