Handout%20#3 (for student).doc

Handout%20#3 (for student).doc - Warm-up problems: In a...

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Warm-up problems : In a population of students, assume A= chocoholic, a=non-chocoholic. H=Harry Porter fan, h=non-Harry Porter fan. A dihybrid cross gives the observed phenotypes: 315 chocoholic& Harry Porter fan; 101 non-chocoholic & Harry Porter fan; 108 chocoholic & non-Harry Porter fan; a) What is the observed ratio of the phenotypic classes? b) Perform a Chi Square test to determine the probability of getting data that deviated this much from the predicted ratios, if Mendel’s second law is true. Is the deviation statistically significant? c) Using chi-square test to see if chocoholic: non-chocoholic data fit 3:1 ratio Multiple Alleles: 1. T/F At each locus, only 2 alleles are present within a group of individuals. Therefore, genotype of each diploid individual consists of only 2 alleles. 2. In rabbits, the order of dominance is C (full color)> D (chinchilla) > E (Himalayan)> F (albino). Determine P phenotype F1 phenotype F2 phenotype Himalayan x Himalayan Full color x albino Albino X chinchilla
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This note was uploaded on 02/28/2009 for the course BICD BICD100 taught by Professor Smith during the Winter '09 term at UCSD.

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Handout%20#3 (for student).doc - Warm-up problems: In a...

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