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1. How many kinds of nitrogen bases does a DNA molecule have?

A. 2
B. 3
C. 4.
D. 1

User Noseratio
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1 Answer

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Answer:

4.

Step-by-step explanation:

Adenine, Thymine, Cytosine, and Guanine

(In RNA Thymine is replaced with Uracil)

User Charmeleon
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