MBG 2400- Midterm Exam Guide - Comprehensive Notes for the exam ( 27 pages long!)

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What are b and b: different sized letters are used in order to differentiate between alleles in locus of the genome. Polymorphism: pigs with bigger litter produce more potential meat, cut out chunk of short arm of chromosome 3 and sequenced it, used two different breeds. Factors affecting independence and f2 ratios: pleiotropy: one locus affects two or more traits, white cat= ww or ww (w is dominant, w also causes deafness, how melanocytes. Inner ear also has melanocytes for electrical transmission to the brain. Defective melanocyte development means no pigment or electric signals= white and deaf. W shows dominant epistasis: ww allows expression of colours and patterns. Calculating f(a)= 98 x 2 +84 = 280/ 400= 0. 7. Calculating f(a) = 84+ 18 x 2= 120/ 400 = 0. 3. Proportion of a= p= p + h. Proportion of a= q= q= h p + q=1. Frequency of s= p=p+ h = 0. 7 +0. 1 = 0. 8.