Question 7 Listen In humans 2 genes determine eye color. Anybody with at least brown allele B will always have brown eyes. If someone is homozygous for the recessive allele b, then a second gene G, determines the eye color. Someone who is bb; GG or bb; Gg has green eyes and someone who is bb;gg has blue eyes. Someone who is Bb;gg has children with someone who is Bb;Gg. What is the chance that they have a child with green eyes? 1/4 1/8 3/4 1/2 None
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.
GQ 7
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