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Skip Navigation LinksKCC Home > Academic Departments > Biological Sciences > Bio14 > Lesson 2-Evolution of Population

Lesson 2 Evolution of Population
(Microevolution)

Self study Test

 

I. General facts

II. Population genetics and evolution

A. Gene function in individual organisms

B. Gene pools and allele frequencies

C. Hardy-Weinberg: the equilibrium population

1. The Hardy-Weinberg equation

2. The assumptions of the Hardy-Weinberg theorem

a. No mutation must occur

b. No migration must occur

c. The population must be "infinitely large"

d. Matings must be completely at random

e. All individuals must reproduce equally well (natural selection must occur)

3. Consequences of Hardy-Weinberg theorem

III. Causes of evolution (mechanisms of evolution)

A. Mutation

B. Gene flow

C. Population size

1. Large population (chance)

2. Genetic drift

a. The bottleneck effect

b. The founder effect

D. Natural Selection

1. Directional selection

2. Stabilizing selection

3. Disruptive selection

IV. Genetic variation

A. Importance of genetic variation (G.V.is the source of natural selection)

B. Causes of genetic variations

1. Gene mutations

2. Chromosomal mutations

3. Sexual recombination

V. Natural selection as the mechanism of adaptive evolution

 
 
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