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Quiz 1 with Answer Key for Genetics - Summer 2013 | BIO 328, Quizzes of Genetics

Material Type: Quiz; Class: Genetics; Subject: Biology; University: University of Michigan - Flint; Term: Summer 2013;

Typology: Quizzes

2012/2013

Uploaded on 08/17/2013

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— Bio328 Summer 2013 Quiz #1 Name ( ks ley You are studying a plant with well-understood genetics in your lab. You are particularly interested in two genes in this plant, A and B. The dominant allele A produces a tall plant and the recessive allele a produces a small plant. The dominant B allele produces a branched growth pattern while the recessive allele b produces a straight growth pattern. One of your lab colleagues brings back several true-breeding strains of this plant from a field study: one is tall with straight growth while the other is short with a branched pattern. You start an experiment with these plants... answer the following questions. A- tet a bucked TAL STRAIG 19 T solerfbR . a- shat b- Saget AAbb aaBe a) What are the parental genotypes, using the symbols defined above? b) If these parental strains are crossed, what genotypes and phenotypes will be present in the F1 generation, and in what ratios? Show your reasoning. 4) // AaBb Tal Bu: dick c) If the F1 plants are intercrossed, what genotypes and phenotypes will be present in the F2 generation, and in what ratio? Show your reasoning. d) If the F1 plants are backcrossed to the tall/straight parent, what genotypes and phenotypes will be present in the offspring, and in what ratio? Show your reasoning. e) If the Fl plants are testcrossed, what genotypes and phenotypes will be present in the offspring, and in what ratio? Show your reasoning. Fi P 0) AaBb “AaB da) AaBb * AAbb jit Me} ae tee ekyAB [ab | . | AaBé | AcBi ps |AABb |AAbb |AdBb | Aabb + And g 9 A-B- Thte/apwcHe aK 3 A-bb Mt/smAte/T SCR TAL BRANCASD 3 4aBb- sHaer BAwved ss S07. qate STRAIGIT / aabl — spotr/smateH- - fbsleoss. é) fabb ~ eabl