1. Meiosis

2. Diploid to Haploid

5. Crossing Over Synapsis- Homologous Pairs line up = Tetrad
During synapsis the chromstids within a homologous pair may twist around each other and break off and attach to the other homologous pair = Crossing Over
Results in exchange of genetic material between maternal and paternal chromosomes = genetic recombination

7. Law of Independent Assortment
During metaphase, as the homologous pairs line up the orientation of maternal and paternal chromosomes is random
Not all maternal go to one side, and paternal the other….it is mixed
Law of independent assortment
As the homologous pairs are separated in anaphase, they maternal and paternal chromosomes have random separation
Results in genetic variation

8. Law of Independent Assortment

14. Formation of Gametes
Meiosis only occurs in the reproductive cells…all other cells undergo mitosis
Ending products of meiosis are haploid gametes
Eggs in female - oogenesis
Sperm in male - spermatogenesis
Fusion of sperm and egg results in a diploid cell

15. DNA v. Gene

16. Karyotype 46 chromosomes, 23 pair
One of each pair was from mom, one from dad