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erastovalidia [21]
3 years ago
5

What chemicals are the sides of the DNA ladder made of?

Biology
1 answer:
barxatty [35]3 years ago
6 0

Answer:

The sides of the ladder are made of alternating sugar and phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of 4 types of nitrogen bases. Two of the bases are purines- adenine and guanine.

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