Molecular Genetics of Prokaryotes Problem Set

Problem 6: Different alleles for a bacterial genes

How many lac Z genes were present in the cells described in problem 5 that were able to grow on minimal media?

A. Only 1, the lac Z- allele on the bacterial chromosome.
B. Only 1, the lac Z+ allele on the bacterial chromosome.
C. Two, the lac Z- allele on the bacterial chromosome and the lac Z+ allele on the bacterial chromosome.
D. Two, the lac Z- allele on the bacterial chromosome and the lac Z+ allele on the F' episome.
E. Only 1, the lac Z+ allele on the F' episome.


The Biology Project
University of Arizona
Updated: July 15, 1999
Contact the Development Team

http://www.biology.arizona.edu
All contents copyright © 1998-99. All rights reserved.