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Lecture 6: Introduction to Quantitative genetics

Lecture 6: Introduction toQuantitative geneticsBruce Walsh Lecture notesLiege May 2011 courseversion 25 May 2011 Quantitative GeneticsThe analysis of traits whosevariation is determined by botha number of genes andenvironmental factorsPhenotype is highly uninformative as tounderlying genotypeComplex (or Quantitative ) trait No (apparent) simple Mendelian basis for variation in thetrait May be a single gene strongly influenced by environmentalfactors May be the result of a number of genes of equal (ordiffering)

Quantitative Genetics The analysis of traits whose variation is determined by both a number of genes and environmental factors Phenotype is highly uninformative as to

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