The product of the lacI gene is _____
A) an enzyme
B) a transport protein embedded within the membrane
C) ?-galactosidase
D) the repressor
Answer: D
Biology & Microbiology
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Which of the following occurs when allolactose levels increase in E. coli?
A. Transcription of genes within the lac operon increases. B. Transcription of genes within the lac operon decreases. C. Transcription of genes within the lac operon does not change. D. E. coli cells replicate rapidly. E. The tryptophan operon becomes more active.
Biology & Microbiology
During anaphase, homologous chromosomes separate.
a. true b. false
Biology & Microbiology
Cloning vectors do not replicate in bacteria
1.True 2.False
Biology & Microbiology
Which of the following is/are TRUE?
What will be an ideal response?
Biology & Microbiology