DNA replication — task. Science Test Space, Class 10.

Select the correct answer:

1. To maintain the balance of lost cells in our bodies, billions of cells undergo the _________ cycle.

Cell division
Cell progression
Cell differentiation
Cell mutation

2. Which of the following is the role of an enzyme helicase?

It is an enzyme that separates the two strands of DNA
It is an enzyme that binding the two strands of DNA
It is an enzyme that joins the two strands of DNA
It is an enzyme that elongation the two strands of DNA

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