You then cross the f1 heterozygous males with their

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

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: of 1 in 107. Label the three strains as F-, F+ or Hfr. (circle answer) A is: Hfr B is: FC is: F+ 
 2
 
 2. 






























































Name
 
 
 16 points You are given 2 different Hfr strains of E. coli. You mate these Hfr strains to an F- strain carrying mutations in the following genes: gly, leu, ara, pro, his, tyr, lys. The times of first appearance of individual Hfr genes (wild type alleles) among the recombinants were as follows (in minutes): Hfr marker Hfr 1 Hfr2 gly 75 75 leu 9 51 The E. coli map is ara 57 3 90 minutes long. pro 13 47 his 64 86 tyr 48 12 lys 80 70 (2A) Draw a complete map of the E. coli chromosome showing the distance (in terms of time) between each marker and the locations and orientations of the Hfr1 and Hfr2 origin. (2B) Phage λ integrates primarily at a unique position on the E. coli chromosome. This pos...
View Full Document

This note was uploaded on 05/05/2013 for the course LIFE SCIEN LS4 taught by Professor Jacobsen during the Fall '11 term at UCLA.

Ask a homework question - tutors are online