Meiosis is characterised by

Options

A. Double reduction division
B. Equal division only
C. Both reduction and equal division
D. Homotypic division

Answer

**Step-by-Step Solution:**

1. **Understanding Meiosis**: Meiosis is a specialized type of cell division that reduces the chromosome number by half, resulting in the formation of gametes (sperm and egg cells). It consists of two sequential divisions: meiosis I and meiosis II.

2. **Reductional Division**: In meiosis I, homologous chromosomes are separated, which reduces the chromosome number from diploid (2N) to haploid (N). This is known as reductional division because the total number of chromosomes is halved.

3. **Equational Division**: In meiosis II, the sister chromatids are separated, similar to what occurs in mitosis. This division does not change the chromosome number; thus, it is referred to as an equational division because the chromosome number remains the same.

4. **Conclusion**: Therefore, meiosis is characterized by both reductional and equational divisions. It begins with a reduction in chromosome number during meiosis I and maintains the chromosome number during meiosis II.

5. **Final Answer**: Meiosis is characterized by both reduction and equational division.

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