5a. The table below summarizes expression of B-galactosidase (lacZ) and permease (lacY) from the lac operon, respectively. The strains are grown in the absence or presence of lactose. The “_“ indicates no/low expression and “+" indicates high expression. For each strain (A-G) write out one possible genotype (more than one might be possible) in the table for a lac operon that is consistent with the expression pattern. Do not give partial diploid genotypes. The first condition (upper right) is filled in for you as an example. Strain Lactose Absent Lactose Present B-galactosidase Permease B-galactosidase Permease Lac operon genotype(s) а. + lac+lacP+lacO+lacZ+lacY+ b. d. e. f. + + + g. +|+

5a. The table below summarizes expression of B-galactosidase (lacZ) and permease (lacY) from the lac operon, respectively. The strains are grown in the absence or presence of lactose. The “_“ indicates no/low expression and “+" indicates high expression. For each strain (A-G) write out one possible genotype (more than one might be possible) in the table for a lac operon that is consistent with the expression pattern. Do not give partial diploid genotypes. The first condition (upper right) is filled in for you as an example. Strain Lactose Absent Lactose Present B-galactosidase Permease B-galactosidase Permease Lac operon genotype(s) а. + lac+lacP+lacO+lacZ+lacY+ b. d. e. f. + + + g. +|+

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter15: From Dna To Protein

Section: Chapter Questions

Problem 15TYK

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