Question

the two chairs of DNA milecule are their bonded by nitrogen base to each other by a _______bond

Answer 1

The two pairs of DNA molecule are their bonded by nitrogen base to each other by a hydrogen bond

Answer 2

$\bf{\underline{\underline \green{AnswEr:-}}}$

The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.