Normally, wild violets have yellow petals with darkbrown markings and erect stems. Imagine you discover a plant with white petals, no markings, andprostrate stems. What experiment could you performto determine whether the non-wild-type phenotypesare due to several different mutant genes or to thepleiotropic effects of alleles at a single locus? Explainhow your experiment would settle the question.
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.
Normally, wild violets have yellow petals with dark
brown markings and erect stems. Imagine you discover a plant with white petals, no markings, and
prostrate stems. What experiment could you perform
to determine whether the non-wild-type
are due to several different mutant genes or to the
pleiotropic effects of alleles at a single locus? Explain
how your experiment would settle the question.
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