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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? [2014]
- a)G0 and G1
- b)G1 and S
- c)Only G2
- d)G2 and M
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
During which phase(s) of cell cycle, amount of DNA in a cell remains a...
(c) In M-phase both 4C and 2C of DNA are present in different stages.
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During which phase(s) of cell cycle, amount of DNA in a cell remains a...
The cell cycle can be divided into two major phases: interphase and the mitotic phase. Interphase is further divided into three phases: G1, S, and G2.
During interphase, the cell grows and replicates its DNA in preparation for cell division in the mitotic phase. The amount of DNA in a cell is denoted as 2C at the beginning of the cell cycle.
Answer: C) Only G2
Explanation:
During the G1 phase, the cell grows and carries out its normal metabolic activities. The DNA is in its unreplicated 2C state.
During the S phase, DNA replication occurs, resulting in the doubling of the amount of DNA in the cell from 2C to 4C.
During the G2 phase, the cell prepares for cell division by synthesizing the necessary proteins and organelles. The amount of DNA in the cell remains at 4C level.
During the mitotic phase, the cell divides into two daughter cells, each with a 2C amount of DNA.
Therefore, the amount of DNA in a cell remains at 4C level only during the G2 phase.
During interphase, the cell grows and replicates its DNA in preparation for cell division in the mitotic phase. The amount of DNA in a cell is denoted as 2C at the beginning of the cell cycle.
Answer: C) Only G2
Explanation:
During the G1 phase, the cell grows and carries out its normal metabolic activities. The DNA is in its unreplicated 2C state.
During the S phase, DNA replication occurs, resulting in the doubling of the amount of DNA in the cell from 2C to 4C.
During the G2 phase, the cell prepares for cell division by synthesizing the necessary proteins and organelles. The amount of DNA in the cell remains at 4C level.
During the mitotic phase, the cell divides into two daughter cells, each with a 2C amount of DNA.
Therefore, the amount of DNA in a cell remains at 4C level only during the G2 phase.
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During which phase(s) of cell cycle, amount of DNA in a cell remains a...
In s phase the amount of DNA double but again it get half in anaphase(M-phase) so the right answer is OPTION (C)
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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? [2014]a)G0 and G1b)G1 and Sc)Only G2d)G2 and MCorrect answer is option 'C'. Can you explain this answer?
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