Midterm I Spring 07 - Answer key

Midterm I Spring 07 - Answer key - Name:_ BIS101-01, Spring...

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Name:_________________________ ID:__________________________ BIS101-01, Spring 2007 Dr. D.J. Kliebenstein, Instructor Midterm Exam I Please print your name and ID number on each page of the exam. The exam has 11 questions and a total of 120 points For full credit, show all of your work. AUTHORIZATION FOR PUBLIC DISTRIBUTION OF GRADED PAPERS OR EXAMINATIONS I,_________________________________, Student ID No._________________________________: Authorize the University to publicly distribute my graded exam (e.g., handed out in class or left in an exam bin) for BIS101-01. If I do not sign, then I must see the instructor to pick up my exam. Signed:_______________________________________ Dated:__________________________________
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Name:_________________________ ID:__________________________ 1 ________________ 2 ________________ 3 ________________ 4 ________________ 5 ________________ 6 ________________ 7 ________________ 8 ________________ 9 ________________ 10 ________________ Total ____________________
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Name:_________________________ ID:__________________________ 1. Fill in the blank with the most appropriate definition to the right (16): TestCross: a a. A cross between an unknown genotype and the homozygous recessive Sex Linkage: m b. A cross between two heterozygous individuals. Allele: o c. A cross between two individuals heterozygous for two genes. Genotype: n d. A value which a trait can take. Incomplete dominance: p e. A complete list of phenotypes for an individual. Complementation: g f. A process that can test if two individuals have a variant phenotype due to an allele of the same locus, this only works in eukaryotes. Conjugation: J g. A process that can test if two individuals have a variant phenotype due to an allele of the same locus. Cotransduction: i h. The process of mating in a legal vernacular. i. The process of mating between prokaryotes that involves a phage. j. The process of mating between prokaryotes that involves a F plasmid. k. The process of mating between prokaryotes that involves naked DNA and electroshock therapy. l. The process of a gene controlling the sex of an individual, linked to sex so to speak. m. The association of a locus with the sex chromosome. n. A complete list of loci and their allelic value for an individual. o. A variant of a locus. p. A relationship between alleles that can appear to follow the blending model of inheritance. 2. A researcher studying body color in an Amazonian ant identifies a number of color mutants. All mutant lines were shown to be true breeding. To test the number of genes/complementation
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Name:_________________________ ID:__________________________ and the allelic relationships, the researcher crossed all of the mutants to each other and to the wildtype. All F2 from the crosses to wildtype showed a 3:1 ratio (16). Color Genotype Wildtype Green AABBCC Mutant 1 Blue a 1 a 1 BBCC Mutant 2 Blue-green a 2 a 2 BBCC Mutant 3 Yellow AAb 1 b 1 CC Mutant 4 Yellow AAb 2 b 2 CC Mutant 5 Blue a 3 a 3 BBCC Mutant 6 White AABBc 1 c 1 A. How many different genes were altered in this collection of mutants (2)?
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Midterm I Spring 07 - Answer key - Name:_ BIS101-01, Spring...

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