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Unformatted text preview: a. Expected ratio of dominant and recessive phenotypes is 3:1= probably is frequency ¾ chance that any individual offspring of heterozygous individuals will express dominant phenotype ¼ chance that any individual offspring of heterozygous individuals will express recessive phenotype B. Event is certain to occur = probability is 1 Event is certain NOT to occur= probability is 0 A probability can be 0,1, or some number between 0 and 1 C. Punnett Square – following two statistical principles a. Product rule- predicts the combined probabilities of independent events. Events are independent if the occurrence of one does not affect the probability the other will occur....
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- Fall '09
- Genetics, early 20th century, heterozygous individuals, Predict Mendelian Inheritance, a. Chromosome theory