A bean breeder is working with a population in which themean number of pods per plant is 50 and the variance is10 pods2. The broad-sense heritability is known to be 0.8.Given this information, can the breeder be assured thatthe population will respond to selection for an increase inthe number of pods per plant in the next generation?
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 bean breeder is working with a population in which the
mean number of pods per plant is 50 and the variance is
10 pods2. The broad-sense heritability is known to be 0.8.
Given this information, can the breeder be assured that
the population will respond to selection for an increase in
the number of pods per plant in the next generation?
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