Term
| what are the two types of evolutionary scales? |
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Definition
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Term
| what scale does microevolution follow? |
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Definition
| small scale, within a single population |
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Term
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Definition
| a change in gene frequency in a population |
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Term
| what scale does macroevolution occur on? |
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Definition
| a large scale, transcends the boundaries of a species |
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Term
| do micro and macro evolution happen due to the same evlution mechanisms? |
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Definition
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Term
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Definition
| random rare changes in genes |
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Term
| how much allele frequency change in one generation does mutation account for? |
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Definition
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Term
| what is migration also known as? |
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Definition
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Term
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Definition
| when genes/ alleles immigrate or emigrate between populations |
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Term
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Definition
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Term
| non-random mating happens when |
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Definition
| there is no mating preference |
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Term
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Definition
| genes that produce better offspring are passed on |
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Term
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Definition
| a unit of inheritance that typically codes for a particular trait or characteristic |
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Term
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Definition
| locus: the specific place on a chromosome where a gene is located |
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Term
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Definition
| an alternative form of a gene |
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Term
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Definition
| possessing two different forms (alleles) of a particular gene, one inherited from each parent |
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Term
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Definition
| possessing two identical forms (alleles) of a particular gene, one inherited from each parent |
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Term
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Definition
| the genetics of a trait, which alleles are present |
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Term
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Definition
| what the genotype results in, what you see |
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Term
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Definition
| the contribution an organism makes to the next generation’s gene pool, relative to other individuals |
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Term
| both Hardy-Weinberg equations |
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Definition
| p^2 + 2pq + q^2 = 1, p+q= 1 |
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Term
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Definition
| frequency of dominant allele |
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Term
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Definition
| frequency of recessive allele |
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Term
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Definition
| frequency of homozygous dominant |
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Term
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Definition
| frequency of homozygous recessive |
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Term
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Definition
| frequency of heterozygous individuals |
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Term
| what does the H-W theorem state? |
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Definition
| the allele frequencies of a gene in a population will remain constant, as long as evolutionary forces are not acting |
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Term
| what things have to be for H-W to happen? |
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Definition
| no mutations, no migration, random mating, no natural selection, population is infinitely large |
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Term
| sickle cell anemia allele |
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Definition
| HbS, recessive (normal = HbA) |
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Term
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Definition
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Term
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Definition
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Term
| members of the same species have the potential to mate and produce viable offspring, which they cannot do with members of another species |
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Definition
| biological species concept |
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Term
| three limitations of the biological species concept |
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Definition
| fossils, hybrids, and asexual reproduction |
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Term
| what tools are used to delineate species? |
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Definition
| morphological traits, molecular traits, behavioral traits |
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Term
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Definition
| impede mating or fertillization |
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Term
| types of prezygotic barriers |
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Definition
| behavioral isolation (sexual selection), mechanical isolation (parts) |
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Term
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Definition
| prevent offspring from developing into viable, fertile adults |
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Term
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Definition
| animals that appear identical, but are genetically quite distinct |
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Term
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Definition
| males and females of the same species look different |
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Term
| adaptive radiation example |
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Definition
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Term
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Definition
| the sum of ((observed- expected)^2 / expected) |
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