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Anthro_L3 - Mendelian Genetics Mendels Findings Mendels...

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2/25/11 11 Mendelian Genetics Mendel’s Findings Mendel’s Explanation Modern Definitions Punnett Squares Human Examples
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2/25/11 22 Announcements SONA account info will be sent you today – Psych account different than Anth Check junk folder • Problems: – First read tutorial online – Otherwise, see Sangin in person
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2/25/11 33 Question
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2/25/11 44 Recap Prereqs for Evolution Finch evolution in action – heritable variation with differential reproduction Evidences of evolution Reverse engineering Comparative method
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2/25/11 55 Question At what level does evolution function? The gene Let's start at the beginning.
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2/25/11 66 Back in the day .... Blending model common thought
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2/25/11 77 Mendel’s Findings
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2/25/11 88 Mendel’s Findings Garden peas have two versions of – color: green and yellow – seed shape: wrinkled and smooth – height: short and tall Each trait is consistent throughout the plant but does not affect the other traits
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2/25/11 99 Mendel’s Findings Mendel started with pure strains Then he bred two opposite strains together He did NOT get a blending result
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2/25/11 1010 Mendel’s Findings Pure Smooth x Pure Wrinkled 100% Smooth Parent Generation F0 Next Generation F1
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2/25/11 1111 Mendel’s Findings F 1 x F 1 75% Smooth 25% Wrinkled F1 Generation F2 Generation
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2/25/11 1212 Mendel’s Findings Mendel regularly got findings like that Parent F 1 F 2 Smooth x Wrinkled 100% Smooth 75% Smooth, 25% Wrinkled Yellow x Green 100% Yellow 75% Yellow, 25% Green Tall x Short 100% Tall 75% Tall, 25% Short
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2/25/11 1313 Mendel’s Explanation 1: The ‘hereditary factors’ are particulate, they do not blend.
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