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In which phase of the cell cycle does replication occur in Eukaryotes? What would happen if cell-division is not followed after DNA replication. - Biology

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Question

In which phase of the cell cycle does replication occur in Eukaryotes? What would happen if cell-division is not followed after DNA replication.

Solution

DNA replication occurs in S phase of cell cycle in eukaryotes.
If cell division is not followed after DNA replication then the replicated chromosomes (DNA) would not be distributed to daughter nuclei. A repeated replication of DNA without any cell division results in the accumulation of DNA inside the cell. This would increase the volume of the cell nucleus, thereby causing cell expansion.

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