Question

6 distinguish between the sides of the dna double helix and the teeth of the dna double helix.

Explanation:

The sides of the DNA double helix are made up of alternating sugar (deoxyribose) and phosphate groups, forming the backbone. The teeth (rungs) of the double helix are the nitrogenous base pairs (adenine - thymine, guanine - cytosine) that are connected by hydrogen bonds and hold the two strands together.

Answer:

• Sides of DNA double helix: Composed of alternating deoxyribose (sugar) and phosphate groups, forming the backbone of the double helix structure.
• Teeth of DNA double helix: Consist of nitrogenous base pairs (A - T, G - C) connected by hydrogen bonds, linking the two strands of the double helix.