NURSING ANM AND GNM

Detailed explanation-1: -Under normal circumstances, the nitrogen-containing bases adenine (A) and thymine (T) pair together, and cytosine (C) and guanine (G) pair together. The binding of these base pairs forms the structure of DNA .

Detailed explanation-2: -Erwin Chargaff found that in DNA, the ratios of adenine (A) to thymine (T) and guanine (G) to cytosine (C) are equal. This parity is obvious in the final DNA structure.

Detailed explanation-3: -The type of bonds between A-T and G-C base pairs are hydrogen bonds. There are two hydrogen bonds between A-T base pairs, while there are three hydrogen bonds between the G-C base pair. These hydrogen bonds between the complementary bases help hold the two DNA strands together.