A corn breeder wishes to improve yield. As part of their work, the narrow-sense heritability for corn yield is calculated to be 0.3. If the average yield in the starting population is 400 and the breeder selects for breeding plants with an average yield of 500, what will be the expected average yield among the offspring of the selected plants?
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
A corn breeder wishes to improve yield. As part of their work, the narrow-sense heritability for corn yield is calculated to be 0.3.
If the average yield in the starting population is 400 and the breeder selects for breeding plants with an average yield of 500,
what will be the expected average yield among the offspring of the selected plants?
A.
530
B.
330
C.
130
D.
430
E.
230
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