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dusya [7]
3 years ago
11

Blood cells are made in which system?

Biology
1 answer:
stiv31 [10]3 years ago
4 0
Its the letter B because its the circulatory system
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A replication bubble forms as the DNA unwinds.

Option C  

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DNA unwinding is the first step in replication or transcription of the DNA molecule. DNA helicase separates the two types of "DNA" that are connected by hydrogen bonds with the help of ATP hydrolysis.  

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