Term
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Definition
| the combined genetic information of all the members in one population. |
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Term
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Definition
| the number of times an allele occurs in a gene compared to other alleles. |
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Definition
| a trait that is controlled by a single gene that has two alleles. |
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Term
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Definition
| a trait that is controlled by a gene that has two or more alleles. |
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Term
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Definition
| when individuals at one end of the curve have higher fitness than individuals in the middle or at the other end |
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Term
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Definition
| when individuals near the center of the curve have higher fitness than individuals at either end |
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Term
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Definition
| when individual at the upper or lower ends of the curve have higher fitness than those closer to the middle |
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Term
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Definition
| a random change in allele frequency |
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Term
| what does the Hardy-Weinberg principle state? |
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Definition
| allele frequencies in a population will stay constant unless one or more factors cause those frequencies to change |
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Term
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Definition
| the situation in which allele frequencies remain constant |
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Term
| what are five conditions required to maintain genetic equilibrium from generation to generation? |
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Definition
| 1)there must be random mating, 2)the population must be very large, 3)there can be no movement into or out of the population, 4)no mutations, and 5)no natural selection |
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Term
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Definition
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Term
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Definition
| when members of two populations cannot interbreed and produce fertile offspring |
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Term
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Definition
| two populations are capable of interbreeding but have differences in behavior |
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Term
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Definition
| two populations are separated by barriers such as rivers or mountains |
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Term
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Definition
| two or more species reproduce at different times |
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