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Evolution Making Sense of Life

Biology

Quiz 7 :

Beyond Alleles: Quantitative Genetics and the Evolution of Phenotypes

Quiz 7 :

Beyond Alleles: Quantitative Genetics and the Evolution of Phenotypes

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The greyhound is a dog breed known for its amazing speed. This breed was produced by taking the fastest animals and breeding them together, generation after generation. Though artificial, this is an example of __________.
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D

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Which of the following steps is a part of QTL association studies?
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A

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The total variance in a phenotypic trait in a population (VP ) is accurately expressed as
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E

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What does VG×E represent?
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A quantitative trait locus is
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Which event would result in an allele or alleles being in a state of perfect linkage disequilibrium?
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Scientists studying a species of fish using quantitative trait locus analysis found that fishes with paternal alleles at a marker have larger body sizes than fishes with maternal alleles at the marker. This suggests that
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The selection differential for a quantitative trait is ____________. Assuming heritability is the same in all cases, a larger selection differential ___________.
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A trait with h2 = 0
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If A1 represents an allele at one locus and B1 represents an allele at another locus, what is img ?
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The graph below plots survival versus birth weight for human babies. What type of selection is operating? img
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Which of the following is true of QTL association studies?
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If the heritability of a trait in a population is low,
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When sources of genetic variation act independently, their effects are
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The pattern of phenotypic expression of a single genotype across a range of environments is
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Which process would oppose natural selection of a favorable combination of alleles?
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If VG×E > 0,
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How does genome wide association (GWA) mapping differ from quantitative trait locus (QTL) mapping?
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Which of the following statements about linkage disequilibrium is false?
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Below are some different scenarios for the heritability of a trait and the selection differential in a population. Which scenario will produce the largest response to selection?
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