GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Available at local hobby stores and retailers throughout the Greater Cleveland area.
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A mathematical tool that biologists can use to predict allele frequencies and determine whether or not evolution is occurring within a population.
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Always occurring within populations of organisms in nature.
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Only useful in the lab and cannot be practically applied to real-world populations of organisms.
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Detailed explanation-1: -It predicts how gene frequencies will be inherited from generation to generation given a specific set of assumptions. When a population meets all the Hardy-Weinberg conditions, it is said to be in Hardy-Weinberg equilibrium (HWE).
Detailed explanation-2: -Evolutionary Implications of the Hardy-Weinberg Theorem The Hardy-Weinberg Theorem demonstrates that Mendelian loci segregating for multiple alleles in diploid populations will retain predictable levels of genetic variation in the absence of forces that change allele frequencies.
Detailed explanation-3: -Applications of Hardy-Weinberg The genetic variation of natural populations is constantly changing from genetic drift, mutation, migration, and natural and sexual selection. The Hardy-Weinberg principle gives scientists a mathematical baseline of a non-evolving population to which they can compare evolving populations.
Detailed explanation-4: -The Hardy-Weinberg equation used to determine genotype frequencies is: p2 + 2pq + q2 = 1. Where ‘p2’ represents the frequency of the homozygous dominant genotype (AA), ‘2pq’ the frequency of the heterozygous genotype (Aa) and ‘q2’ the frequency of the homozygous recessive genotype (aa).