How is meiosis 1 differ from meiosis 2

Answer 1

Meiosis 1 and Meiosis 2 are two consecutive divisions that lead to the formation of haploid gametes. The key differences between Meiosis 1 and Meiosis 2 include:

1. Meiosis 1 involves two rounds of cell division (meiosis I and meiosis II), while Meiosis 2 involves only one round of cell division.

2. In Meiosis 1, homologous chromosomes pair up and exchange genetic material through a process called crossing over. This results in genetic variation among the daughter cells. In Meiosis 2, sister chromatids separate without any genetic exchange occurring.

3. Meiosis 1 results in the reduction of chromosome number from diploid (2n) to haploid (n) through the separation of homologous chromosomes. Meiosis 2 results in the separation of sister chromatids, but the chromosome number remains the same (haploid).

4. Meiosis 1 results in the formation of two haploid daughter cells with genetically unique combinations of chromosomes, while Meiosis 2 results in the formation of four haploid daughter cells, each with a distinct combination of genetic material.

Overall, Meiosis 1 is responsible for generating genetic diversity through recombination events, while Meiosis 2 is responsible for producing haploid gametes with a unique combination of genetic material.