Sawaal
5
Q:

What are the sides of the dna ladder made of

A) nitrates and sugars B) sugars and hydrates
C) sugars and phosphates D) phosphates and nitrates

Answer:   C) sugars and phosphates



Explanation:

DNA is a double-stranded molecule twisted into a helix. The shape of DNA is a double helix, which is like a twisted ladder. The sides of the ladder are made of alternating sugar and phosphate molecules. Deoxyribose, which is a pentose, and a phosphate group are the two molecules together form the two sides of the DNA. The rungs of the ladder are pairs of 4 types of nitrogen bases.

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