ap biology - unit 7: allele frequencies & evolution

timestamps

• 0:00

  Introduction to Alleles

• 0:34

  Population Allele Distribution

• 1:06

  Natural Selection Impact

• 1:37

  Mice Color Example

• 2:07

  Mutations and Changes

• 2:37

  Gene Flow vs Drift

• 3:09

  Gene Flow Explanation

• 3:39

  Increasing Genetic Variation

• 4:11

  Genetic Drift Overview

• 4:42

  Variation Decrease Example

• 5:14

  Bottleneck Effect

• 5:46

  Bottleneck Graphic

• 6:16

  Founder Effect

• 6:48

  New Population Variation

• 7:18

  Non-Random Mating

• 7:49

  Mate Choice Traits

• 8:21

  Gene Flow Question

• 8:51

  Variation Increase Example

• 9:22

  Visual Examples Reminder

• 9:53

  Poll Question Two

• 10:25

  Poll Results Discussion

• 10:57

  Genetic Drift Changes

• 11:33

  Poll Question Three

• 12:04

  Founder Effect Answer

• 12:37

  Incorrect Answers Explanation

• 13:07

  Natural Selection Clarification

• 13:38

  Genetic Equilibrium Discussion

• 14:09

  Wrapping Up Concepts