Unit 1- Pop. Genetics and Evolution
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Created by:
jennifer639 on September 19, 2010
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14 terms
Terms | Definitions |
|---|---|
 Genotype | the genetic makeup of an individual with reference to a single trait or a set of traits |
| Phenotype | observable properties of an organism, resulting from interactions between the genotype and the environment |
| Gene | the basic unit of heredity |
| Alleles | alternative forms of the same gene, occupying the same position (locus) on chromosomes |
| Homozygote | genotype with two alleles that are the same |
| Heterozygote | genotype with two different alleles |
| Dominant vs. Recessive allele | the phenotypic effect of the recessive allele is masked in the herozygotes by that of dominant allele |
| Mutation | an inheritable change of genetic material |
| Fitness | relative contribution of an individual or genotype to succeeding generations |
| Natural Selection | the differential reproductive success of individual organisms; survival of the fittest |
| Adaptation | Ability of an organism to live in harmony or conformity with its environment |
| Metapopulation | the set of local populations of a species in spatially discrete habitat patches (a population of populations) |
| Ecotype | genetically differentiated populations of a species, each restricted and adapted to a specific environment |
| Phenotypic plasticity | environmentally induced phenotypic variation |
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