In meiosis, division is

Options

A. I reductional and II equational
B. I equational and II reductional
C. Both reductional
D. Both equational

Answer

**Step-by-Step Solution:**

1. **Understanding Meiosis:**
- Meiosis is a specialized type of cell division that occurs in sexually reproducing organisms. It results in the formation of gametes (sperm and egg cells).
- The key feature of meiosis is that it reduces the chromosome number by half.

2. **Chromosome Number:**
- The parent cell in meiosis is diploid (2n), meaning it has two sets of chromosomes.
- After meiosis, the resulting gametes are haploid (n), containing only one set of chromosomes.

3. **Phases of Meiosis:**
- Meiosis consists of two main stages: Meiosis I and Meiosis II.
- Meiosis I is known as reductional division because it reduces the chromosome number from diploid to haploid.
- Meiosis II is known as equational division because it separates the sister chromatids, maintaining the haploid chromosome number.

4. **Correct Option:**
- The correct answer to the question is that in meiosis, the first division is reductional and the second division is equational.

5. **Elimination of Incorrect Options:**
- The other options can be eliminated based on the definitions:
- If both divisions were equational, it would not lead to a reduction in chromosome number.
- If both divisions were reductional, it would not produce haploid gametes.
- The option stating the first division is equational and the second is reductional is also incorrect.

**Final Answer:**
In meiosis, the first division is reductional, and the second division is equational.

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