practice%20exam_2(2006)%20key

practice%20exam_2(2006)%20key - Name:- Genetics 466: exam 2...

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Name: ------------------------------------------------------- Genetics 466: exam 2 1 General Genetics 466 Spring 2006 Exam II KEY Please write your name on each page before starting the exam Content of exam II 3 questions: matching phrases to terms/concepts (15 points total) 9 multiple-choice questions (27 points total) 10 true-false questions (20 points total) 6 problems (38 points total)
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Name: ------------------------------------------------------- Genetics 466: exam 2 2 Grades Matching phrases to terms/concepts / 15 Multiple-choice / 27 True-false / 20 Problems / 38 Total Matching phrases 1) Choose the best matching phrase in the right column for each of the terms in the left column. Write the corresponding number in the parenthesis after the term (5 points). a. linkage ( 2 ) 1. allows maintenance of stable stocks of lethal mutations and allelic combinations b. locus ( 5 ) 2. when genes tend to be inherited together c. recombinant ( 4 ) 3. crossing over at one point reduces the chance of a second one occurring in the same region d. balancer chromosome ( 1 ) 4. allelic combination not found in the parents e. coupling phase ( 6 ) 5. a fixed position on a chromosome occupied by a gene or allele 6. allelic configuration in which dominant alleles initially present in the same chromosome
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Name: ------------------------------------------------------- Genetics 466: exam 2 3 2) Choose the best matching phrase in the right column for each of the terms in the left column. Write the corresponding number in the parenthesis after the term (5 points) . a. Lysogeny ( 3 ) 1. Mutant T4 phage that is incapable of growth on an E. coli K12( λ ) strain b. Transduction ( 5 ) 2. Bacterial cell with fertility factor integrated into the chromosome c. F’ ( 4 ) 3. Phase of a bacteriophage life cycle during which its DNA is integrated into the bacterial chromosome and is replicated along with that chromosome d. Hfr ( 2 ) 4. Bacterial cell with an autonomously replicating episome that carries a piece of the bacterial chromosome e. rIIa ( 1 ) 5. Transfer of genetic information from one bacterium to another using a bacteriophage as a vector 6. Bacterial uptake of a piece of naked DNA from its environment 3) Choose the best matching phrase in the right column for each of the terms in the left column. Write the corresponding number in the parenthesis after the term (5 points) . a. Lagging strand ( 5 ) 1. Bacterial DNA polymerase that possesses 5’ 3’ polymerase, and 3’ 5’ exonuclease activities, but devoid of 5’ 3’ exonuclease activity b. snRNP U5 ( 4 ) 2. The strand of DNA that is synthesized continuously during replication c. DNA polymerase I ( 3 ) 3. Bacterial DNA polymerase that possesses 5’ 3’ polymerase, 5’ 3’ exonuclease and 3’ 5’ exonuclease activities d. Leading strand (
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practice%20exam_2(2006)%20key - Name:- Genetics 466: exam 2...

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