Lecture 9A

Question 1

Diploid & Haploid?

Answer 1

Diploid cell: has 2 sets of chromosomes: 2n
Human somatic cells: 46 chromosomes: 2 sets of 23

Haploid cell: has 1 set of chromosomes: 1n
Gametes: Sperm cells or ova (eggs) are haploid
22 autosomes + an X (in a human egg)
22 autosomes + either X or Y (in a human sperm cell).