Homework 2-answers - BIO 325 Genetics Homework 2 This...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
BIO 325 Genetics Homework 2 This homework 1 is due Wednesday, Mar. 11 (either after the class or by 5:00 pm to the BIO401 Drop box; no late homework accepted!); Coverage: Chapter 15 1. (2 points) By transduction we run a cross between A+B+C+ and A B C . We run the cross and get 179 A+B+C+, 173 A B C , 52 A B+C+, 46 A+B C , 22 A B+C , 4 A+B+C and 2 A B C+. What is the gene order for these three genes (this is a classical three point cross)? ACB or BCA 2. (2 points) If a mutation in an essential gene prevents a colony from growing, how would a bacteriologist study the bacterial strain with such a mutation? Use a conditional lethal mutation such as a temperature sensitive mutation. 3 4) In the original interrupted mating experiment performed by Wollman and Jacob, they mated HfrH str s thr + azi r ton r lac + gal + cells to F str r thr azi s tons lac gal cells, disrupted mating pairs at 1 minute intervals and plated the exconjugants on plates containing streptomycin and
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/02/2010 for the course BIO 325 taught by Professor Saxena during the Spring '08 term at University of Texas at Austin.

Ask a homework question - tutors are online