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Difference between Quantitative and Qualitative Genetics

The general studies of qualitative  and quantitative traits are called qualitative genetics and quantitative genetics. The major difference between the two are following:

 Quantitative & Qualitative Genetics

No Qualitative Genetics Quantitative Genetics
1 Characters of kind Characters of degree
2 Discontinuous variation; distinct phenotypic classes Continuous variation; phenotypic measurements form a spectrum
3 Single gene effects Polygenic control; effects of single genes too slight to be detected
4 Concerned with individual matings and their progeny Concerned with population of organisms consisting of all possible kinds of matings
5 Analyzed by making counts and ratios Stastical analyses give estimates of population parameters such as the mean and standard deviation.
6 Examples:
Round or wrinkled seeds of pea
Horned or hornless condition in cattles
Black or white coat of guinea pigs
Kernel colour in Wheat
Skin colour in Man
Eye colour in Man
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