Sister chromatids are found in

Options

A. Mitotic metaphase
B. Meiotic metaphase
C. late telophase
D. both (A) & (B)

Answer

To solve the question "Sister chromatids are found in which of the following chromosomes?", we can follow these steps:

### Step 1: Understand the Concept of Sister Chromatids
Sister chromatids are identical copies of a single chromosome that are connected by a centromere. They are formed during the S phase of the cell cycle when DNA is replicated.

**Hint:** Remember that sister chromatids are formed during DNA replication in the S phase.

### Step 2: Identify the Stages of Cell Division
Sister chromatids are present during specific stages of cell division:
- They are formed during the S phase of interphase.
- They are visible during the M phase, particularly in prophase and metaphase.

**Hint:** Focus on the M phase, especially prophase and metaphase, where sister chromatids are clearly visible.

### Step 3: Analyze the Options
The question likely provides multiple options, such as:
1. Interphase
2. Prophase
3. Metaphase
4. Telophase

From our understanding:
- In interphase, sister chromatids are not yet visible as they are in a relaxed state.
- In prophase, sister chromatids begin to condense and become visible.
- In metaphase, sister chromatids are fully condensed and aligned at the metaphase plate.
- In telophase, sister chromatids are no longer visible as they decondense back into chromatin.

**Hint:** Identify which stages are associated with the visibility of sister chromatids.

### Step 4: Conclusion
Based on the analysis, sister chromatids are found in both prophase and metaphase. However, the best answer for the question regarding where they are most clearly observed is during metaphase.

**Final Answer:** Sister chromatids are found in metaphase (Option 3).