Question

Between the two strands of a dna segment the nitrogen bases are held together by

Answer 1

Answer:

hydrogen bonds

Explanation:

3 hydrogen bonds between G and C

2 hydrogen bonds between A and T

Answer 2

Answer:

The nitrogenous bases of the two separate polynucleotide strands are bound together, according to base pairing rules (A with T and C with G), with hydrogen bonds to make double-stranded DNA. The complementary nitrogenous bases are divided into two groups, pyrimidines and purines

Explanation:

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