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Chromosomes are least condensed during...

Chromosomes are least condensed during

A

Telophase

B

Interphase

C

Metaphase

D

Anaphase

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Chromosome Structure**: Chromosomes exist in two forms during the cell cycle: as chromatin (less condensed) and as condensed chromosomes (more compact). Chromatin is a thread-like structure that is less visible under a microscope. 2. **Phases of the Cell Cycle**: The cell cycle consists of several phases: - Interphase (which includes G1, S, and G2 phases) - Mitosis (which includes prophase, metaphase, anaphase, and telophase) 3. **Identifying Chromosome Condensation**: During interphase, chromosomes are in the form of chromatin and are least condensed. This allows for the necessary processes of DNA replication and gene expression. 4. **Condensation During Mitosis**: As the cell enters mitosis, specifically during prophase, chromosomes begin to condense. This condensation continues throughout the mitotic phases (prophase, metaphase, anaphase, and telophase), where chromosomes are tightly packed and easily visible. 5. **Conclusion**: Since the question asks when chromosomes are least condensed, the correct answer is during the interphase, as this is when they exist in the chromatin form. **Final Answer**: Chromosomes are least condensed during the interphase. ---
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