ap biology - unit 7: allele frequencies & evolution
originally streamed in 2019 with Caroline KoffkeTeachercovered in this stream
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
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