Chapter 23 Flashcards
1
Q
Polygeny
A
genes at many loci influence single characteristics
2
Q
Heritability
A
describes the proportion of total phenotypic variation in a population due to genetic factors
3
Q
Broad- vs narrow-sense heritability
A
narrow-sense heritability provides a more accurate prediction of selection response than broad-sense heritability, because it uses additive genetic variance
4
Q
Va
A
additive genetic variance
5
Q
Vd
A
dominance genetic variance
6
Q
Vi
A
gene interaction variance
7
Q
Vg
A
genetic variance
8
Q
Vp =
A
Vg + Ve + Vge
9
Q
concordance
A
percentage of twin pairs in which both twins have a particular trait
10
Q
Quantitative trait loci
A
the multiple genes on a chromosome contributing to a quantitative trait
