MidtermIIS10Akey

MidtermIIS10Akey - BIS 101-001 (Engebrecht) Spring 2010...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
1 BIS 101-001 (Engebrecht) Midterm II May 18, 2010 Spring 2010 Form A DO NOT OPEN UNTIL INSTRUCTED Fill out your name, student identification number and form letter on the blue Scantron Form with a #2 pencil. READ THE QUESTIONS CAREFULLY BEFORE YOU ANSWER. Fill in your answers on the scantron form with a #2 pencil. For each question only choose one answer (the best answer) and fill in your selection clearly and completely. If you change an answer, make sure you erase the original selection completely. There are 9 pages including this cover sheet and 32 questions to this exam worth 100 points. No calculators or cell phones during the exam. The exam will end promptly at 10:20am. GOOD LUCK
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Questions 1-6: You have obtained 4 samples of nucleic acid with the following properties: Sample 1: 1 μ g; 0.5kb; 23% G, 23% C Sample 2: 1 μ g; 0.5kb; 23% G, 25% C Sample 3: 1 μ g, 0.5kb; 25% G, 25% C Sample 4: 1 μ g; 1.0kb; 23% G, 23% C 1. (2pts) Sample 1 contains what % and composition of each of the remaining bases: A. 26% A; 26% T B. 25% A; 27% U C. 27% A; 27% T D. 25% A; 25% U E. 25% A; 25% T 2. (2pts) Sample 2 contains what % and composition of each of the remaining bases: A. 26% A; 26% T B. 25% A; 27% U C. 27% A; 27% T D. 25% A; 25% U E. 25% A; 25% T You decide to look at the denaturation kinetics and obtain the following results. 3. (3pts) Sample 1 corresponds to: A. A B. B C. C D. D E. B or C 4. (3pts) Sample 2 corresponds to: A. A B. B C. C D. D E. B or C
Background image of page 2
3 5. (3pts) Sample 3 corresponds to: A. A B. B C. C D. D E. B or C You perform a renaturation experiment and see the following results: 6. (3pt) Sample 4 corresponds to A. A B. B C. C D. D E. B or C 7. (3pts) In a generalized transduction experiment donor E. coli cells have the genotype arg+ leu+ met- and recipient cells have the genotype arg- leu- met+. P1 mediated transductants for arg+ were selected, and the genotypes with respect to leu and met determined, with the following results: Genotype Number of progeny arg+ leu+ met- 205 arg+ leu- met- 95 arg+ leu+ met+ 5 arg+ leu- met+ 195 500 What is the order of the genes: A. arg leu met B. arg met leu C. met arg leu
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 8. (3pts) Mutants defective in centromeric heterochromatin will: A. missegregate chromosomes B. transcribe genes near centromeres C. be auxotrophic for growth D. A & B E. A, B & C 9. (4pts) Which of the following are substrates for DNA polymerase III: A. 3’_____________ 5’ B. 5’__________ 3’ 5’__________________3’ 3’________________ 5’ C. 5’_______3’ 3’_______5’ A. A B. B & C C. A & C D. A, B & C E. None of the above 10. (4pts) Which of the following are substrates for primase:
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/27/2010 for the course BIS BIS 101 taught by Professor Sanders during the Spring '09 term at UC Davis.

Page1 / 9

MidtermIIS10Akey - BIS 101-001 (Engebrecht) Spring 2010...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online