Answer:
0.4
Explanation:
Narrow sense heritability is a form of heritability (the other one is broad sense) that is used to describe the percentage of trait variance that is caused as a result of additive genetic factors. It is represented as h² = Va / Vp
Where Va = additive genetic variance
Vp = phenotypic variance
In this case, to get the narrow-sense heritability of pumpkin weight in this population
We have the following
mean weight of original pumpkin patch = 10lbs
weight of a group of original pumpkin = 15lbs
the average weight of offspring pumpkin = 12lbs
Hence we have h² = Va / Vp
= (12 - 10) ÷ (15 ÷ 10)
= 0.4
