Genetics week 3
Genetics week 3 BIOL-3023
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This 0 page Class Notes was uploaded by Daniella Heussner on Sunday January 31, 2016. The Class Notes belongs to BIOL-3023 at Oklahoma State University taught by Dr. Campbell in Winter 2016. Since its upload, it has received 32 views. For similar materials see Genetics in Biology at Oklahoma State University.
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Date Created: 01/31/16
0 We expect Mendelian rations when these assumptions are met 1 Characters are controlled by single genes with alleles that are either dominant or recessive 2 During gamete formation alleles are distributed equally among gametes due to random segregation 3 During gamete formation segregating pairs of alleles from different genes assort independently not relevant to monohybrid ratios 4 Fertilization is random with respect to the genotype of gametes o Mendelian rations are null hypotheses H0 when there is a signi cant difference between observed and expected ratios we reject the null Chisquare test Xquot2 2 Observed Expected2 Expected Degrees of freedomdf n1 o Pthe probability of obtaining a similar or more extreme result if the null hypothesis were true reject the null when plt005 0 Probability theory 0 Product law of probabilities The probability of two or more events occurring simultaneously is equal to the product of their individual probabilities 0 Sum low of probabilities The probability of obtaining any single outcome where that outcome can be achieved by two ore more events is equal to the sum of the probabilities of all such events Recessive Can skip one or more generations 0 Dominant Usually appears every generation Autosomal Males and females equally affected Xlinked Never transmitted from fathers to sons 0 The binomial theorem Predicting the probability of alternative outcomes that can be achieved by multiple combinations of events I o Ntotal of events b
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