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Class 11
Botany :-NCERT Solutions - Cell cycle and cell division.

Question 14
Can there be mitosis without DNA replication in S phase


Answer:

Mitotic cell division cannot take place without DNA replication in S phase. Two important events take place during S phase – one is the synthesis or duplication of DNA and the other is the duplication of the centriole. DNA duplication is important as it maintains the chromosome number in the daughter cells and hence Mitosis is an equational division. Therefore, the duplication of DNA is an essential step and without it, no mitosis can take place.

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NCERT Botany Class 11

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