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irinina [24]
4 years ago
9

DNA replication consists of several steps that result in the duplication or copying of genetic material. Which step of DNA repli

cation occurs first?
A.) An enzyme unwinds the double helix.

B.) The cell makes copies of all organelles.

C.) Nucleotides pair up with nitrogenous bases.

D.) Hydrogen bonds between nitrogen bases separate.
Biology
1 answer:
Scorpion4ik [409]4 years ago
8 0
A) An enzyme unwinds the dounle helix
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