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postnew [5]
3 years ago
14

What happens first at each origin of replication?

Biology
1 answer:
schepotkina [342]3 years ago
6 0

Answer:

The answer is C.

Explanation:

At first, an enzymes called Helicase unwind the double helix in a DNA .

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Sister chromatids are attached to each other at an area called the
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