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allsm [11]
3 years ago
9

At what point in the cell cycle does DNA replication occur and why?

Biology
2 answers:
Marrrta [24]3 years ago
7 0

Answer: Option A.

Before a cell divided to provide each of the two resulting cells with a complete set of DNA instructions.

Explanation:

DNA replication is the process by which two copies of identical DNA are produced from a double stranded DNA molecule.

DNA replication normally occurs because the cells divide to produce new cells. Each new cells must have complete set of DNA instructions, so DNA must be copied before cells divide.

aalyn [17]3 years ago
6 0

Answer:

A. before a cell divides, to provide each of the two resulting cells with a complete set of DNA

instruction

Explanation: DNA replication occurs at the s phase of the interphase. It is process in which a new copy of DNA strand is made. The existing DNA strands serves as template for the new one. We have conservation and semi-conservative replication.

DNA replication occur before cell divides because the new daughter cell contain the exact copy of the original DNA.

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