Which of the following is NOT a potentially negative impact of genetic drift in a population? Maladaptive alleles could become fixed Populations might become homogenised, slowing down speciation A loss of genetic diversity leaves populations more vulnerable to environmental changes A loss of genetic diversity increases the probability that a population will be subject to inbreeding depression
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.
Which of the following is NOT a potentially negative impact of genetic drift in a population?
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Maladaptive alleles could become fixed |
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Populations might become homogenised, slowing down |
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A loss of genetic diversity leaves populations more vulnerable to environmental changes |
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A loss of genetic diversity increases the probability that a population will be subject to inbreeding depression |
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