lecture11+mendel+2

lecture11+mendel+2 - Lecture 11 More Mendelian gene2cs...

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Lecture’11-’More’ Mendelian’gene2cs’ What’Mendel’avoided’dealing’with:’genes’are’ linked’on’chromosomes’ Linkage’maps’of’chromosome’posi2ons’ Sex’linkage’ Gene2c’interac2ons’ One’gene,’mul2ple’traits’( pleiotropy)’ Mul2ple’genes,’one’trait’( epistasis)’ Genotype’x’environment’ From’Mendel’back’to’quan2ta2ve’traits’
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Last’2me:’law’of’independent’assortment’ With Independent Assortment
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But’Mendel’was’lucky!’Suppose’the’S’and’Y’loci’ had’been’on’the’same’chromosome?’ sy SY sy sy SsYy SsYy ssyy With Independent Assortment With out Independent Assortment
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Lessons’from’the’fruit’fly’ Drosophila melanogaster Thomas’Hunt’ Morgan’1866-1945’ ~60%’genome’ homology’with’ humans’
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Why’wasn±t’assortment’ en2rely’independent?’ Thomas’Hunt’ Morgan’1866-1945’ Genotypes Bb Vgvg bb vgvg Bb vgvg bb Vgvg
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lecture11+mendel+2 - Lecture 11 More Mendelian gene2cs...

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