A) 2.0
B) 1.0
C) 0.5
D) 0.2
E) None of the choices is correct.
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A) VG.
B) VP.
C) VE.
D) VG/VP.
E) VP/VG.
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A) the sum of genetic variance (VG) and environmental variance (VE) .
B) the difference between VG and VE.
C) not dependent on VG.
D) not dependent on VE.
E) always constant.
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A
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A) fine map QTLs
B) establish linkage disequilibrium.
C) establish linkage equilibrium.
D) rough map QTLs.
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A) only one discrete type.
B) two extremes.
C) a bell-shaped distribution.
D) a higher mutation rate.
E) All of the choices are correct.
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A) discontinuous distribution of discrete phenotypes.
B) continuous variation in phenotypic expression.
C) strict dominance and recessiveness.
D) All of the choices are correct.
E) only discontinuous distribution of discrete phenotypes and continuous variation in phenotypic expression.
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B
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A) are affected by both genetic and environmental factors.
B) usually do not result in continuous phenotypes.
C) are not usually affected by environmental conditions.
D) usually result in one or two phenotypic values such as red/white eye color in Drosophila.
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A) are related genetically the same as monozygotic twins.
B) share 0% genetic similarities.
C) are similar in 100% of genetic sequences.
D) are related genetically the same as non-twin siblings.
E) are similar to the parents.
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A) the heritability (h2) of a trait.
B) the strength (S) of selection.
C) the difference between h2 and S.
D) S/h2.
E) h2S.
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E
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A) They share all alleles at all loci.
B) They have a genetic relatedness of 0.5.
C) They have a genetic relatedness of 1.0.
D) They come from the joining of a single egg with a single sperm cell.
E) They are the result of a split of the zygote after fertilization.
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A) are as genetically identical as possible
B) have the greatest varinace at all losi as possilble
C) have the same parents
D) are subjected to a natural environment.
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A) two alleleic variants correlate with the presence of a particular phenotype.
B) two alleleic variants do not correlate with the presence of a particular phenotype.
C) that two alleleic variants are at least 60 mu apart.
D) two alleleic variants are 50 mu apart
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