Question

compare the structures of purines and pyrimidines. can you find out why the distance between the two polynucleotide chain in DNA remains almost constant?

Answer 1

Solution: it is the bonding between the purines and pyrimidines that the two polynucleotide chains remain constant in DNA.

Even purine remains opposite to the pyrimidines.

In the DNA strand, adenine always bonds with the guanine using double bonding.

The resulting pair is often regarded as the cytosine and the bond is basically known as the H bond.

Answer 2

Answer:

Here is ur answer

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