3.2 Fertilisation

• Process begun with adult male and adult female. The cell which made up an adult whether is male or female.
• These cells has a complete chromosomes. One is diploid which is from the adult male and contain 2n=42 chromosomes for human. These cell divide in a testy.
• Type division is meiosis. Female the cell meiosis would contain haploid.
• They both join/fuse together and the process is fertilisation. New cell known as a zygote.
• The process cell division is mitosis eg. one cell will divide to 2 cell and both contain 46 chromosomes. Efficient cell structure would call embryo.