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15 Cards in this Set
- Front
- Back
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All of the genes present in a population represent the |
gene pool |
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A meteor hitting the earth could cause ____________ effect if a certain trait is favored |
bottleneck |
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Define bottleneck effect: |
occurs when there is a disaster of some sort that reduces a population to a small handful, which rarely represents the actual genetic makeup of the initial population
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Ten birds go to a area and settle. However, the new population does not contain the same characteristics as the original. This is an example of: |
The Founder Effect |
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The blue region represents |
disruptive selection |
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The blue region represents |
directional selection |
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Emigration |
When an organism leave an area |
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Immigration |
When an organism enters and area |
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Because of emigration and immigration new ____________are added to a population ultimately altering the allele________
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alleles /allele frequency |
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The name of the process that creates new species |
speciation |
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Define species |
A group of organisms that are able to reproduce and that live in a particular environment. |
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When organisms are separated by a land or water barrier this is called |
geographical isolation |
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When the separation of an organism prevents it from reproducing this is called |
reproductive isolation |
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After many generations of separation a group of organisms is unable to reproduce which the original population. This means it is a new__________ |
Species |
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Once a new species is formed can it ever go back to mating with the original species |
No |
