Q.
A gamete contains 22 pg DNA. What will be the amount of DNA present in its somatic cells after completion of the S phase of the cell cycle?
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a
22 pg
b
44 pg
c
88 pg
d
11 pg
answer is C.
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Detailed Solution
Gamete contains 1n number of chromosome and 1c amount of DNAA normal somatic cell at G1 phase contains 2n number of chromosomes and 2c amount of DNA. At S phase the amount of DNA doubles but the number of chromosomes remain the same.Therefore, the amount of DNA is 4c= 22 X 4 = 88pg.
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