Lecture 14 Flashcards Preview

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Flashcards in Lecture 14 Deck (15):
1

Define Inbreeding

The mating between relatives

2

Define Sexual Selection

The thing chooses their partner

3

Consequence of Inbreeding

Some recessive alleles are mutations and some mutations are bad and if they inbred that mutation code becomes enhanced and more common

4

For inbreeding,
Does the frequency of homozygotes increase or decrease?

Increase

5

For Inbreeding,
Does the frequency of heterozygotes increase or decrease?

Decrease

6

Will Non-Random mating lead to evolution?

HECK NAH

7

4 Evolutionary Processes

1. Natural Selection
2. Mutation
3. Genetic Drift
4. Gene flow

8

Genetic Drift is all about…

Chance

9

Genetic Drift increase/decrease Genetic Diversity

Decreases

10

If you lost a population what else do you lose?

Genetic diversity

11

Define Genetic Drift

Random loss or fixation of alleles by chance over time

12

Genetic Drift is strongest in __________ population

Small

13

Founder Effect

Few individuals go colonize and establish isolated populations

14

Population Bottleneck

A sudden reduction in the number of (different) alleles in a population

15

Genetic Drift Types

1. Random fusion of gametes during fertilization
2. Founder Effect
3. Population Bottleneck