If the cell is diploid in `G_(1)` than after the S phase cell remain/become:-

Options

A. n
B. 4n
C. 8n
D. 2n

Answer

To solve the question, "If the cell is diploid in G1 phase, then after the S phase the cell remains/becomes:", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the G1 Phase**:
- The G1 phase is the first gap phase in the cell cycle where the cell is preparing for DNA replication. In this phase, the cell is diploid, meaning it has two sets of chromosomes (2n).

2. **Identifying the S Phase**:
- The S phase, or synthesis phase, is the part of the cell cycle where DNA replication occurs. During this phase, each chromosome is duplicated, resulting in two identical sister chromatids for each chromosome.

3. **Analyzing the Outcome of the S Phase**:
- Although the DNA is replicated during the S phase, the cell does not undergo division at this stage. Therefore, the total number of chromosomes does not change. The cell remains diploid (2n) because it still has two sets of chromosomes, but each chromosome now consists of two sister chromatids.

4. **Conclusion**:
- After the S phase, the cell remains diploid (2n) even though the amount of DNA has doubled. The correct answer to the question is that the cell remains 2n.

### Final Answer:
The cell remains diploid (2n) after the S phase.

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