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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
Examples:
Kernel colour in Wheat
Skin colour in Man
Eye colour in Man
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