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Question: Answered & Verified by Expert
A somatic cell that has just completed the S phase of its cell cycle, as compared to gamete of the same species, has:
BiologyCell Cycle and Cell DivisionNEETNEET 2015 (Phase 1)
Options:
  • A Twice the number of chromosomes and twice the amount of DNA
  • B Same number of chromosomes but twice the amount of DNA
  • C Twice the number of chromosomes and four times the amount of DNA
  • D Four times the number of chromosomes and twice the amount of DNA
Solution:
1035 Upvotes Verified Answer
The correct answer is: Twice the number of chromosomes and four times the amount of DNA
S-phase (synthesis phase) is the part of the cell cycle in which DNA is replicated, but a number of chromosome does not change.

If a cell is diploid then after S phase DNA content in the cell will be 4 C and Chromosome in the cell will be 2 N.

While in a gamete,

DNA content in gamete = C

Chromosome in gamete = N

Hence, the Number of chromosome in a somatic cell will be twice than gamete while DNA content will be four times.

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