If the phenotypic variance of kernel size in two pure breeding strains of wheat
ID: 80995 • Letter: I
Question
If the phenotypic variance of kernel size in two pure breeding strains of wheat and their F1 progeny averages 0.2 mm, but the phenotypic variance of kernel size in the F2 generation is 0.4, then what is the broad-sense heritability of kernel size? Answer: 0.5
In mice, suppose that body size has a heritability of 0.3, and that the mean body size in a population is 25 grams. If mice are selected that have a mean body size of 30 grams and are crossed, what is the expected mean body size for their offspring? Answer: 26.5
If reverse selection at a selection plateau yields no response for a particular trait, then the heritability for the trait = __________ Answer: 0
**** These questions are all from a study sheet on which the answers are given, please explain how you arrive at these answers and show work, thanks so much!
Explanation / Answer
1.