Question

Describe in detail double helical structure of dna as propose by waston and crick

Answer 1

Double helix is the description of the structure of a DNA molecule. A DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating groups of sugar (deoxyribose) and phosphate groups.

Answer 2

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In Watson and Crick's model, the two strands of the DNA double helix are held together by hydrogen bonds between nitrogenous bases on opposite strands. A and T are found opposite to each other on the two strands of the helix, and their functional groups form two hydrogen bonds that hold the strands together.