If additive genes contribute to all of the observed phenotypic variation for a quantitative characteristic, then what must be true? a-Narrow-sense heritability for this characteristic will be equal to 0.5 b-The mean phenotype of the parental generation will be equal to the phenotype of the individuals in F1 c-Broad-sense-heritability for this characteristic will be greater than narrow-sense heritability.
1- If additive genes contribute to all of the observed phenotypic variation for a quantitative characteristic, then what must be true?
a-Narrow-sense heritability for this characteristic will be equal to 0.5
b-The mean
c-Broad-sense-heritability for this characteristic will be greater than narrow-sense heritability.
2-
How can a geneticist find and map quantitative trait loci (QTLs)?
a-By dividing the covariance by the product of the standard deviations of traits x and y
b-By determining whether different genotypes for a known DNA marker also show variation in a quantitative characteristic
c-By determining the selection response "R" and the selection differential "s"
d-By calculating the genetic variance for a quantitative from the phenotypic and environmental variance
asap please.
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