You are studying directional selection on neck length (aquantitative trait) in a giraffe population. Below you can see dataon neck length of the whole population and the breedingparents.
Neck length of all individuals in population | Neck length of breeders in population |
45 | 90 |
80 | 80 |
90 | 75 |
39 | 95 |
60 | 60 |
35 | |
95 | |
40 | |
75 | |
30 | |
(a) (4 pts) What is the selection differential? Show yourcalculations.
(b) (4 pts) In the offspring of the next generation you findthat the average neck length is 60. Based on this and the resultsfrom (a), what was the heritability of neck length. Show yourcalculations.
