lecture12.0206 - Why do we look like what we look like?...

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1 Why do we look like what we look like? (continuing from Monday) Can brown-haired, brown-eyed parents  produce blonde-haired, blue-eyed sons? Phenotype   Genotype
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2 Mendel’s great discoveries: single gene characteristics:  particulate chromosome gene alleles dominant recessive  traits heterozygous homozygous independent   assortment : random
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3 Shuffling the deck:reproduction Mendel’s Peas are Tall (T) and Short (t) I. Start with Generation 1 Genotype for 1st generation: 1 homozygous TT 1 homozygous tt Phenotype for 1st generation: 1 Tall 1 Short
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4 TT “mates” with tt t t _________________________________ T Tt Tt T Tt Tt _________________________________ Genotype of 2nd generation: 4 heterozygous Tt Phenotype of 2nd generation: 4 Tall
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5 Tt “mates” with Tt T t _________________________________ T TT Tt t tT tt _________________________________ Genotype for 3rd generation: 1 homozygous T 2 heterozygous Tt 1 homozygous t Phenotype for 3rd generation: 3 Tall 1 Short
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6 As with height, here’s color…
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This note was uploaded on 04/04/2008 for the course ANTHRO 101 taught by Professor Peters during the Winter '08 term at University of Michigan.

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lecture12.0206 - Why do we look like what we look like?...

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