An animal breeder had a herd of sheep with a mean weight of 254 pounds at 3 years of age. He chose animals with mean weights of 281 pounds as parents for the next generation. When these offspring reached 3 years of age, their mean weights were 269 pounds. A. Calculate the narrow-sense heritability for weight in this herd.
B. Using the heritability value that you calculated in part A, what weight of animals would you have to choose to get offspring that weigh 275 pounds (at 3 years of age)?