Which one is false statement about `G_(2)`-phase?

Options

A. It Is post-S and Pre M-phase
B. In this phase cell has quantity of DNA in each cell Is 4C if the DNA in `G_(1)` phase is 2C
C. In it `G_(0)` resides
D. Proteins like tubulln is formed for mitosis as well as cell growth continues

Answer

To determine which statement about the G2 phase is false, we need to understand the characteristics of the G2 phase in the cell cycle. Here’s a step-by-step breakdown:

### Step 1: Understand the Cell Cycle Phases
The cell cycle consists of several phases: G1 (Gap 1), S (Synthesis), G2 (Gap 2), and M (Mitosis). Each phase has specific functions and characteristics.

### Step 2: Identify the G2 Phase
- The G2 phase occurs after the S phase and before the M phase.
- During G2, the cell continues to grow and prepares for mitosis.

### Step 3: Analyze DNA Content
- In the G1 phase, the DNA content is 2C (where C represents the amount of DNA in a haploid cell).
- After DNA replication in the S phase, the DNA content doubles to 4C.
- Therefore, in the G2 phase, the DNA content remains at 4C as the cell prepares for division.

### Step 4: Evaluate the Statements
Now, let's evaluate the statements related to the G2 phase:
1. **G0 phase resides in G1 phase** - This is incorrect because G0 is a resting state that occurs after G1, not within it.
2. **G2 phase is after S and before M** - This is correct.
3. **DNA content is 4C in G2 phase** - This is also correct since it follows the S phase.

### Conclusion
The false statement about the G2 phase is that the G0 phase resides in the G1 phase.

### Final Answer
The correct answer is option number 3, which states that the G0 phase resides in the G1 phase.

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