Population genetics

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  • Created by: ppogba
  • Created on: 20-08-19 14:24
What is a Locus (loci)?
the physical position of a gene or marker along a chromosome
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What is an allele? Give example
different forms of a gene. eg. seed shape gene in peas- wrinkled and round alleles.
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In a diploid organism the 2 alleles make up the what?
genotype
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What is a polymorphism?
a gene or phenotype with more than one form
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What is chi-squared value a measure of? What do larger chi-squared values mean?
goodness of fit. Larger values = larger departures from expectation.
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What are the assumptions of Hardy Weinberg?
Random mating. no natural selection. large population size. no migration. no mutation.
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What can happen to genetic variation when populations are subdivided? What can restore genetic variation?
genetic variation can be eroded. Migration can restore it.
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Other cards in this set

Card 2

Front

What is an allele? Give example

Back

different forms of a gene. eg. seed shape gene in peas- wrinkled and round alleles.

Card 3

Front

In a diploid organism the 2 alleles make up the what?

Back

Preview of the front of card 3

Card 4

Front

What is a polymorphism?

Back

Preview of the front of card 4

Card 5

Front

What is chi-squared value a measure of? What do larger chi-squared values mean?

Back

Preview of the front of card 5
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