Question

Which DNA Is Hardest to Separate?

Answer 1

1. DNA (Deoxyribonucleic acid) is a double helix structure that is formed by the base pairs attached to a sugar-phosphate backbone.
2. There are four chemical bases i.e. adenine, guanine, cytosine and thymine.

DNA, which consists predominantly of the G-C base pairs is the hardest to separate as this base pair is bonded by three hydrogen bonds.

1. The two strands of DNA are bound together by hydrogen bonds between complementary bases of the two strands.
2. A (adenine) pairs with T (thymine) by two hydrogen bonds and G (guanine) pairs with C (cytosine) by three hydrogen bonds.
3. It make more difficult to break it than A-T pairs.