What is not true about cell cycle ?
a) During G₁ phase, there is active synthesis of RNA and proteins but no change in its DNA content
b) In synthesis of S phase, each chromosome carries a duplicate set of genes
c) During G₂ phase, a cell contains double the amount (4C) of DNA present in the original diploid cell (2C)
d) In S phase, a cell doubles the original diploid (2n) chromosomes number

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c and d

b, c and d

b and c

only d

answer is C.

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Detailed Solution

In S phase, a cell doubles the original diploid (2n) chromosomes number.

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