Among rats a study of first cousins show a correlation in do

Among rats, a study of first cousins show a correlation in dominance with slope = 0.05. What is the estimated heritability of this trait? Among full siblings of the same group of rats, a followup study shows a correlation in dominance with slope = 0.07. What is the estimated heritability of dominance in this study?

Solution

1) estimated heritability =fraction/ slope*contstant=0.125/ 8*0.05=0.125/0.4=0.31

2)estimated heritability=fraction/slope*constant=0.5/2*0.07=0.5/0.14=3.57