Replication of chromosomal DNA occurs during:

Interkinesis

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Early prophase

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Late anaphase

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S-phase

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Solution

The correct option is D S-phase
Replication occurs during the S-phase of interphase also known as the synthesis phase. This is the phase when the cell uses its energy to double its DNA, build up proteins and cell organelles including mitochondria, in preparation to divide.

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Replication of chromosomal DNA occurs during:

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