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11 Cards in this Set
- Front
- Back
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What is heredity?
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The passing on of characteristics from the parents to the offspring
*physical and behavioral |
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Genetics?
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An area of science that studies heredity
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Genetics?
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An area of science that studies heredity
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Traits?
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A characteristic that can be passed on by heredity (historical belief)
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Aristotle?
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A greek philosopher
He came up with the Pangene Theory that said that the "genetic memory" was found in the blood AND then the blood goes to the reproductive organs and allows moms and dads blood to mix and create offspring |
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Blended traits theory (1600's)
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offspring characteristics will be a blend of the 2 parents characteristics
ex: 5'0 and 6'0 - kid would be 5'6 |
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Who is Gregor Mendel?
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-Austrian Munk
-studied physics, math, and bio -applied math to results -studies genetics with pea plants -known as the "father of modern genetics" |
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Mendels work - using pea plants
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-they're easily growable
-they grow quickly - low time for next generation (they can self fert. or cross fert. which allowed mendel to chose parents and traits to cross) -7 easily recognized traits |
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7 Traits of Mendels Experiments
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1 Plant color
2 Plant shape 3 Pod color 4 Pod shape 5 flower color 6 plant height 7 flower position |
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3 steps to Mendels Experiment
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1)make a purebread
Purebread - parents and offspring have identical information (called parental generation) Purple X Purple White X White 2)Cross 2 P generation plants -called first filial generation (F1 generation) -purebread purp w/purebread white (all F1 are purple) 3) cross F1 and F1 -2nd filial generation -F1 X F1 = F2 (results 75% purp &5% white.. 3:1 ratio) |
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7 Traits of Mendels Experiments
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1 Plant color
2 Plant shape 3 Pod color 4 Pod shape 5 flower color 6 plant height 7 flower position |
