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BIOC51H3 (51)
Lecture 15

BGYB51H3 Lecture 15 Notes Oct 29

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University of Toronto Scarborough
Biological Sciences
Maydianne Andrade

BGYB51H3 Lecture 15 Notes -population genetics focuses on qualitative traits in which phenotypes fall into discrete categories -population genetics assumes that these discrete phenotypes are determined by genotypes and not affected by the environment -internal and external environment is important for the development of most traits -other proteins can affect the expression of the phenotype -biotic and abiotic factors affect phenotype -phenotypes of individuals vary even when genotypes are the same -rearing clones of plants with known genotypes in different environments produces different phenotypes -quantitative traits are characteristics for which phenotypes show continuous variation -quantitative traits are determined by the environment and many genes -quantitative traits focus on phenotypes and heritability as well as statistical properties of population traits -typical distribution of quantitative traits is normal distribution -quantitative genetics involves measuring heritability, different lifetime reproductive success and predicts effect of selection on phenotypes -population level measures the fraction of the variation in a tra
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