Question

how many base pairs are there in B DNA?

Answer 1

The diameter of the B-DNA is ~20Angstroms, and the distance between base pairs is ~3.4 Angstroms. The base pairing of opposite strands is stereochemically selective, Adenine always pairing with Thymine, and Guanine with Cytosine

Answer 2

There are two main base pairs in DNA.
purine Base and pyramidine base..
Adenine pairs with thymine and guanine pairs with cytosine....

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