If she moves the operator to the far end of the operon, past the transacetylase (lacA) gene, which of the following would likely occur when the cell is exposed to lactose?
A) The inducer will no longer bind to the repressor.
B) The repressor will no longer bind to the operator.
C) The operon will never be transcribed.
D) The structural genes will be transcribed continuously.
E) The repressor protein will no longer be produced.
Answer: D
You might also like to view...
Plague is a quarantinable disease.
a. true b. false
If the sequence of bases in the template strandĀ of a DNA molecule is 3' ATCGCTCC 5', what is the sequence of bases in the RNA that is transcribed from this molecule?
A. 5' TAGCGAGG 3' B. 3' TAGCGAGG 5' C. 5' AUCGCUCC 3' D. 5' UAGCGAGG 3' E. 3' UAGCGAGG 5'
A cold transmitted by a facial tissue is an example of
A) direct contact. B) droplet transmission. C) fomite. D) vector. E) vehicle transmission.
The regulatory systems of the animal body maintain a relatively stable internal condition through a process called ________.
A. absorption B. equilibrium C. osmoreception D. countercurrent exchange E. homeostasis