Meiosis (Gamete formation)

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Presentation transcript:

Meiosis (Gamete formation)

Reproduction of Sex Cells Sex cells (gametes)- Sperm and egg Process is called Meiosis Similar to Mitosis

Meiosis Cell divides twice First division is like mitosis and then the cell divides again to create 4 haploid cells.

MEIOSIS=CHROMOSOME REDUCTION DIVISION

Meiosis Meiosis is also know as chromosome reduction division. Start with 46 and ends up with 23. Why? Fertilization creates the diploid condition again Haploid Diploid

Sperm formation- 4 haploid sperm cells are formed. Egg formation-most of the cytoplasm is used in one cell and the other three disintegrate. One haploid egg cell is formed.

Watch video below as well https://youtu.be/qCLmR9-YY7o

Comparison of mitosis and meiosis

Crossing Over Sometime during meiosis the chromosomes can exchange information This is called Crossing Over Major source of genetic diversity in the species

Prokaryotic Cells Binary fission Occurs in Prokaryotic Cells DNA is copied and then the cell splits in half. Asexual Reproduction