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Biology Exam 5
N/A
16
Biology
Undergraduate 2
05/02/2013

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Term
Species
Definition
natural populations that do or can interbreed and are reproductively isolated from other groups
Term
Population
Definition
a group of organisms of the same species living and breeding in a particular geographic region
Term
Evolution
Definition
is a change in the allele frequencies of a population over time
Term
Selection
Definition
Term
Charles Darwin
Definition
Term
Alfred Russell Wallace
Definition
Term
Mutation
Definition
a direct change in the DNA of an individual— the ultimate source of all genetic variation
Term
Genetic Drift
Definition
a random change in allele frequencies in a population. The change in allele frequencies is not related to the alleles’ influence on reproductive success.

Impact is greater in small populations
Term
Founder effect
Definition
Term
Bottleneck
Definition
Term
Migration/gene flow
Definition
Term
Natural selection
Definition
Term
Variation

Heritability/Inheritance

Reproductive Success
Definition
Term
Fixation
Definition
Term
Fitness
Definition
Term
Somatic cells
Definition
cells making up the body of an organism--not passed from parent to offspring
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