NEET 2014 Biology question
During which phase(s) of cell cycle, amount of DNA in a cell remains at 4C level if the initial amount is denoted as 2C?
Answer: (4)
Solution
A diploid cell has 2C DNA in G and G. During S phase the DNA is replicated, so the amount rises from 2C to 4C (it is between 2C and 4C in S phase, not at 4C throughout). After S phase the cell has the replicated 4C amount of DNA throughout G and, because the sister chromatids are still together in the same
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