Bio 14.4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Explain the significance of gene pools in understanding evolution. | Without the gene pool there would be no variation of any gene for it to be able to adapt.
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| Tell how genetic drift, gene flow, mutation, and natural selection contribute to changes in a gene pool. | They all contribute by effecting the alleles and how common they each show up.
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| Explain what is meant by the term fitness. | contribution that an individual makes to the gene pool of the next generation compared to the contributions of other individuals
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| Describe recent evidence for microevolution on the Galápagos Islands. | The size of the finches beaks on the Galapagos Island changes from year to year based on what food is available for the finches to eat.
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| gene pool | all of the alleles in all the individuals that make up a population
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| micro-evolution | evolution on the smallest scale—a generation-to-generation change in the frequencies of alleles within a population
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| Hardy-Weinberg equilibrium | condition that occurs when the frequency of alleles in a particular gene pool remain constant over time
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| genetic drift | change in the gene pool of a population due to chance
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| gene flow | exchange of genes between populations
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| fitness | contribution that an individual makes to the gene pool of the next generation compared to the contributions of other individuals
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