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Interphase :...

Interphase :

A

includes stages `G_1 S and G_2`

B

requires the use of polar fibres and kinetochore libres

C

is the same as prophase, metaphase, anaphase, and telophase

D

rarely occurs

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Text Solution:** 1. **Understanding Interphase**: Interphase is a crucial part of the cell cycle where the cell prepares for division. It is not a phase of mitosis but rather the period during which the cell grows and DNA is replicated. 2. **Identifying the Stages of Interphase**: Interphase consists of three distinct stages: - **G1 Phase (Gap 1)**: This is the first stage where the cell grows and synthesizes proteins necessary for DNA replication. - **S Phase (Synthesis)**: During this phase, the cell replicates its DNA, ensuring that each daughter cell will have an identical set of chromosomes. - **G2 Phase (Gap 2)**: In this final stage of interphase, the cell continues to grow and prepares for mitosis, producing proteins and organelles needed for cell division. 3. **Analyzing the Options**: The question provides several options regarding interphase: - **Option A** states that interphase includes stages G1, S, and G2. This is correct as it accurately describes the components of interphase. - **Option B** mentions polar fibers and kinetochore fibers, which are involved in mitosis, not interphase. - **Option C** compares interphase to the stages of mitosis (prophase, metaphase, anaphase, and telophase), which is incorrect. - **Option D** states that interphase rarely occurs, which is also incorrect as interphase is a regular and essential part of the cell cycle. 4. **Conclusion**: Based on the analysis, the correct answer is **Option A: Interphase includes stages G1, S, and G2**. ---
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