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Q.

Which of the following is true for S-phase of cell cycle?

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a

If the initial amount of DNA is 2C then it increases to 4C

b

Centriole duplicates in animal cells and cells of higher plants

c

Chromatin is organised as chromosomes

d

Formation of kinetochores is seen

answer is A.

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Detailed Solution

In S phase, the amount of DNA of cell is doubled. If the cell has 2C amount of DNA at the start of S stage, by the end of this stage it becomes 4C.
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