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Q:

What are the rungs of the DNA ladder made of?

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

Answer:   C) nitrates and phosphates



Explanation:

The rungs or the sides of the DNA ladder is made of Deoxyribose, which is a pentose, and a phosphate group are the two molecules together form the two sides of the DNA i.e, A sugar (deoxyribose) and a phosphate.

Subject: Biology
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