Lecture 2 posted - BIO 311D LECTURE 2 GENETICS Blending...

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Unformatted text preview: BIO 311D LECTURE 2 GENETICS Blending inheritance model Large population of 20mph bunnies Add one 30mph bunny + If blending inheritance happens… 30mph bunny 20mph bunny = 25mph bunnies Next generation… + 25mph bunny 20mph bunny = 22.5mph bunnies After 11 generations… 20.003mph bunnies + = Gregor Mendel Gregor Mendel Lived 1823-1884 Performed well in school To continue studies, entered Augustinian monastery and became a monk. Became an excellent botanist (plant biologist) Became interested in how inheritance worked Performed new experiments from 1857-1865 to deduce principles of inheritance in pea plants. Mendel’s experiments Mendel’s experiments – Generation time. – Heritable characteristics. – Number of offspring produced. – Performance of crosses. – Captivity – Cost Mendels peas Generations of Punnett square crosses: – Parent- S = smooth seed, w = wrinkled seed Genotype – the genetic makeup Phenotype – the outside appearance Homozygous dominant – SS Homozygous recessive – ww Generations: – Parent- SS = smooth seed, ww = wrinkled seed S w S w S w S w w w S S-- F1 Punnett square Offspring of parents Generations: – Parent - S = smooth seed, w = wrinkled seed SS S w S w ww S w S w S w S w S w S w w w S S F1 F2 What does it mean about inheritance?...
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This note was uploaded on 03/18/2008 for the course BIO 311D taught by Professor Reichler during the Spring '08 term at University of Texas.

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Lecture 2 posted - BIO 311D LECTURE 2 GENETICS Blending...

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