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Unformatted text preview: 1 Gregor Mendel, 1822-1884 Fig. 2.7 Mendel: the frst to apply a quantitative experimental approach to understand the laws o inheritance model organism: the garden pea-sel-ertilization as well as cross-ertilization-rapid growth cycle-discrete traits Mendel s law o segregation: The two alleles or each trait separate during gamete ormation, and then unite at random at ertilization Fig. 2.10 haploid : containing a single set o chromosomes genome : the genetic content o a cell diploid : containing two copies o the genome genetic cross : the deliberate mating o two organisms allele : a orm o a single gene gene : the basic unit o genetic inormation and inheritance 2 Fig. 2.11 P = the parental organisms, or the parental generation F 1 = the offspring of the parental organisms (rst lial generation) F 2 = the offspring resulting from a self-cross of the F 1 (second lial generation) genotype = alleles present in an organism phenotype = expression of alleles as a measurable trait...
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- Fall '08