The document summarizes the process of sexual reproduction through meiosis. It explains that meiosis involves two cell divisions that reduce the number of chromosomes from diploid to haploid. This allows for the formation of gametes with half the normal number of chromosomes. When gametes fuse during fertilization, the resulting zygote is diploid again. Meiosis leads to genetic variation through processes like independent assortment of homologous chromosomes and crossing over.

2. Cell division: Involves the division of the nucleus then the division of the cytoplasm. The two types are mitosis and meiosis :

7. Summary diagram of meiosis

9. Meiosis animation

12. Comparing mitosis and meiosis

13. Comparing mitosis and meiosis

14. Difference in DNA quantity between mitosis and meiosis

15. Difference in DNA quantity between mitosis and meiosis