1. Which of the following conditions does not lead to a change in gene expression patterns...

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Biology

1. Which of the following conditions does not lead to a changein gene expression patterns in bacteria cells?
A.
Sporulation
B.
Heat shock
C.
Nutrient availability
D.
Nitrogen deprivation
E.
None of the choices are correct
2. Predict the outcome of the removal of the N form the DNAsequence of the (lamda) phage:
A.
Lysogenic cycle will be induced
B.
Entry into the bacterial host will be blocked
C.
Antitermination will be affected
D.
Transcription form the left promoter will be interrupted
E.
Antitermination will be affected and transcription form the leftpromoter will be interrupted
3. Which of the following is a possible mechanism for the actionof NusA in termination?
A.
It binds to the RNA polymerase causing it to stall.
B.
It stimulates termination at intrinsic terminator byfacilitating hairpin loop formation
C.
It binds to NusB to promote detachment of the RNA polymerase forthe DNA template
D.
It interacts with S10 to promote dissociation of the RNApolymerase
E.
It binds to the RNA polymerase causing it to stall and itstimulates termination at intrinsic terminator by facilitatinghairpin loop formation

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4.5 Ratings (887 Votes)

1 A A Sporulation Spores are multilayered structure that tend to dormant the bacteria these charecterestics of spores preserve the genetic content of the organism during harse See Answer

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