What type of bonds form between the nitrogenous bases? why are these bonds important?

The bonds that are formed between nitrogenous bases are Hydrogen Bond.

Explanation:

When a hydrogen atom interract with an electronegative atom such oxygen,fluorine hydrogen bond forms,

              A single hydrogen bond is weak noncovalent bond but collectively they exerts  very strong interraction.

            Hydrogen bonding occurs between complementary base pair .For exam An adenine base forms 2 hydrogen bonds with thymine base whereas guanine forms 3 hydrogen bonds with cytosine base.

             The hydrogen bonding between complementary is very much important to stabilize the structure of DNA .

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;