Two different varieties of potato plants produce potatoes with thesame mean weight of 1.5 pounds. One variety has a very low variancefor potato wieght, and the other has a much higher variance. A. Discuss the possible reasons for the differences in variance.B. If you were a potato farmer, would you rather raise a varietywith a low or high variance? Explain your answer from apracticalpoint of view.C. If you were a potato breeder and you wanted to develop potatoeswith a heavier weight, would you choose the variety witha low or high variance? Explain your answer.
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.
Two different varieties of potato plants produce potatoes with the
same mean weight of 1.5 pounds. One variety has a very low variance
for potato wieght, and the other has a much higher variance.
A. Discuss the possible reasons for the differences in variance.
B. If you were a potato farmer, would you rather raise a variety
with a low or high variance? Explain your answer from a
practical
point of view.
C. If you were a potato breeder and you wanted to develop potatoes
with a heavier weight, would you choose the variety with
a low or high variance? Explain your answer.
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