Which statement about the genetic basis of races in humans is correct? You are more closely related to all people of your own race than you are to individuals of different races Differences in health outcomes among members of different racial groups are primarily due to genetic differences between these groups Racial differences only account for about 3-5% of genetic variation in humans Different racial groups are separated by hundreds of thousands of years of evolution
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.
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