BIOL 261 Chapter Notes - Chapter 2: Phenylalanine, Drosophila Melanogaster, Phenylketonuria
27 Feb 2017
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Mutation results in heritable change in dna of a gene. Cross mate mutants to wild type see if descendants show ratio of single gene inheritance. Pure line: all offsprings produced by matings within the members of the line. Cross mating: transferring pollen from anthers of one plant to the stigmata of the other. Self mating/pollination: allowing pollen from a flower to fall on its own stigma. Yy x yy all yellow, yy (f1) Yellow f1 x yellow f2 75% yellow, 25% green. Each plant has a pair of a type of genes. Allele: 2 forms that a gene comes in yy, yy, yy (examples) Mendel"s first law law of equal segregation. In meiosis members of a gene pair separate equally into cells that become gametes. Monohybrid cross: selfing (self mating) the f1 gen yy x yy. Test crossing: crossing f1 gen with parental gen yy x yy results in 1:1.
