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Chapter 3
Evolution by genetic drift
10
Biology
Undergraduate 1
10/13/2013

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Term
What is change in species due to more random mechanisms, particularly sampling error?
Definition
Genetic Drift
Term
Where is genetic drift likely to have large consequence?
Definition
Small populations
Term
What is it called when a drastic drop in population causes a change in genetic makeup?
Definition
Population bottleneck
Term
What is it called when a group of individuals leave a population to create a new one, changing genetic makeup?
Definition
Founder Effect
Term
Evolution occurs at the level of...
Definition
Populations
Term
What involves changing of allele frequency of population?
Definition
Microevolution
Term
What is it called when a particular gene is constant over time?
Definition
Equilibrium
Term
What model dictates genetic equilibrium?
Definition
Hardy-Weinberg
Term
What are the five things that can prevent genetic equilibrium?
Definition
mutation, gene flow or migration, non-random mating, genetic drift, natural selection
Term
What occurs if any part of the Hardy-Weinburg model is broken?
Definition
Evolution
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