30:57

Notes for IB Biology Chapter 3.3

45:22

Notes for IB Biology Chapter 3.4

7:33

Chromosomes and Karyotypes

34:11

Notes for IB Biology Chapter 3.5

44:32

IB Biology 8.2 (Cell Respiration)

9:30

Chromosome Structure and Organization

6:47

Meiosis

16:06

Aneuploidy and Nondisjunction