11: Meiosis and Sexual Reproduction
- Page ID
- 12516
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- 11.1: The Process of Meiosis - Introduction to Meiosis
- Meiosis is the nuclear division of diploid cells into haploid cells, which is a necessary step in sexual reproduction.
- 11.2: The Process of Meiosis - Meiosis I
- In meiosis I, the first round of meiosis, homologous chromosomes exchange DNA and the diploid cell is divided into two haploid cells.
- 11.3: The Process of Meiosis - Meiosis II
- During meiosis II, the sister chromatids within the two daughter cells separate, forming four new haploid gametes.
- 11.4: The Process of Meiosis - Comparing Meiosis and Mitosis
- Mitosis and meiosis share some similarities, but also some differences, most of which are observed during meiosis I.
- 11.5: Sexual Reproduction - Advantages and Disadvantages of Sexual Reproduction
- The genetic diversity of sexual reproduction, observed in most eukaryotes, is thought to give species better chances of survival.
- 11.6: Sexual Reproduction - Life Cycles of Sexually Reproducing Organisms
- The main categories of sexual life cycles in eukaryotic organisms are: diploid-dominant, haploid-dominant, and alternation of generations.