How are repressor levels maintained in the lysogenic state?
What will be an ideal response?
Ans: The presence of repressor at OR2 is necessary for RNA polymerase to initiate transcription from PRM. The gene that encodes the repressor protein uses this promoter; thus, the presence of repressor stimulates the transcription of more repressor.
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The reduction of the microbial population to levels that are considered safe by public health standards is called
A. sanitization. B. sterilization. C. disinfection. D. antisepsis.
Four of the five pairings listed below are related
Select the exception. a. double-stranded DNA – messenger RNA b. purine – pyrimidine c. codon – anticodon d. small subunit – large subunit e. promoter – terminator
Hyperpolarization of a neuron causes the membrane potential to become _______ negative and is largely responsible for the _______ refractory period.
A. less/absolute B. less/relative C. more/absolute D. more/relative
The hormones FSH and LH are produced by the ________
Fill in the blank(s) with correct word