BIOL 1406 Chapter Notes -Reciprocal Cross, Gamete, Tyrosinase

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11 May 2022
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Josef koleverter, 1st to investigate cross-fertilization, tobacco, and obtained fertile offspring. True breeding: offspring produced from self-fertilization remained uniform from generation-to-generation. Segregating: process that alt forms of traits are expressed in offspring than blending each trait of the parents. * mendel was the 1st to quantify the results of his crosses (pea dude)* Peas are small and gross easily, male & female sex organs (self-fertilization) pure kinds, easy to observe. He did made sure the peas were pure, reciprocal cross, lastly he let them self-fertilize. First filial generation (f1): offspring from a cross between a parental generation. Alleles: the different forms of the same gene. 1 out of 2+ alternative states of a gene. F2 in medel"s experiment showed a 3:1 ration (actually 1:2:1 ratio) Parents don"t transmit physiological traits to offspring (only genes) Each gets 1 copy of each gene from each parent. Not all copies of a gene are identical.

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