Behavioral Genetics and Gene–Environment Interaction (7A)
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QUESTION
Compute Falconer heritability given
r
M
Z
=
0.80
r_{MZ}=0.80
r
M
Z
=
0.80
and
r
D
Z
=
0.50
r_{DZ}=0.50
r
D
Z
=
0.50
.
QUESTION
Compute Falconer heritability given
r
M
Z
=
0.80
r_{MZ}=0.80
r
M
Z
=
0.80
and
r
D
Z
=
0.50
r_{DZ}=0.50
r
D
Z
=
0.50
.
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ANSWER
h
2
=
2
(
r
M
Z
−
r
D
Z
)
=
0.60
h^2=2(r_{MZ}-r_{DZ})=0.60
h
2
=
2
(
r
M
Z
−
r
D
Z
)
=
0.60
. Falconer's formula: twice the difference in twin correlations.
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