gen_var_--_completed_tables_and_problem

gen_var_--_completed_tables_and_problem - Sources of...

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Scale Event Asexual/S exual How? Base sequence DNA replication Both Insertion/deletion/ substitution  (mutation) Chromosome Meiosis 1 Sexual Crossing-over; independent  assortment of homologs; inversions Gamete Gametic union Sexual Chance in mating Organism Mating Sexual Nonrandom mating Sources of genetic variation
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Two alleles: Jolly Rancher (J) and bubble gum (B) In your population (entire class), is the candy gene in H-W equilibrium? # Freq J 430 0.63 B 256 0.37 Total 686 1.0 Obs # Exp Freq Exp # J + J 127 0.40 127 J + B 142 0.46 149 B + B 50 0.14 44 Total 319 1.00 320 How close are we to H-W equilibrium? Χ 2 = Σ (O-E) 2 / E p=0.30   30% probability that difference in observed and expected (predicted) genotype  frequencies is due to chance; i.e., population’s genotype frequency is at Hardy-Weinberg 
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After candy exchange, has the candy gene come closer to H-W equilibrium? Two alleles: Jolly Rancher (J)
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This note was uploaded on 03/19/2008 for the course BS 110 taught by Professor S.lawrence during the Fall '07 term at Michigan State University.

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gen_var_--_completed_tables_and_problem - Sources of...

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