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Definition
| the genetic make, set of alleles |
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Definition
| the appearance that's determined by an organism's genetic make up |
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Definition
| a site on a chromosome where genes are located |
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Definition
| having identical alleles for a single trait |
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Definition
| have different alleles for a single trait |
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Term
| hardy-weinberg equilibrium |
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Definition
p + q = 1
p^2 + 2pq + q^2 = 1
p=frequency of dominant allele
q= frequency of recessive allele
p^2= freq of homozygous dominant
q^2= freq. of homozygous recessive
2pq= freq. of heterozygous |
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Term
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Definition
| heritable genetic differences passed on to the next generation |
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Definition
| occurs when there is a change in gene frequency within a population over time |
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| ability for an organism to survive and reprooduce |
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Term
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Definition
1) mutation
2) gene flow
3) genetic drift
4) natural selection
5) nonrandom mating |
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Term
| conditions for hardy-weinberg equilibrium |
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Definition
-no mutations
-no gene flow
-no natural selection
-no nonrandom mating
-large population |
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Term
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Definition
| a grouping that includes a common ancestor and all the descendents of that ancestor |
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| molecular clock hypothesis |
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Definition
| evolutionary changes occur in a clock-like fashion |
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Definition
| selection that favors one extreme phenotype over th eother and causes allele frequencies to change in a predictable direction |
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Definition
| when selection favors an intermdeiate phenotype rather than one at the extremes |
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Definition
| selection that operates against the intermediate phenotype and favors the extreme ones |
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Term
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Definition
| two species form from one ancestral species |
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