AStrain Of Bacteria Pox~ Macmillan: Genetics: A C |
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Jump to... Brandy Winkler \' macmilan learning Available From: Due Date: Late submissions:
Not Set Map 1/18/2018 11:59 PM Genetics: A Conceptual Approac ustesn has been ustomed by
Nornis Armstrong at Univorsity of Goorgis Allowed with 50% of the points possible deducted
per day until 01/20/2018 11:59 PM e mutation in the gene that encodes a sigma factor. A strain
of bacteria possesses a The sigma factor produced by the mutant bacteria is unable to bind to
RNA polymerase at elevated temperatures. What effect will this mutation have on the process of
transcription when the bacteria are raised at elevated temperatures? Select all that apply Points
Possible: 100 Grade Category: Homework Description: Policies: Transcription that begins prior
to the temperature shift will be completed. Transcription will not be affected at the elevated
temperature. All transcription will immediately cease at the elevated temperature Transcription
of some genes will stop but transcription of other genes will 3200 post-lecture HW You can
check your answers You can view solutions after the due date. be not be affected Transcription
initiation will not occur normally at the elevated temperature Transcription will initiate but will
not be able to transcribe to completion. You can keep trying to answer each question until you
get it right or give up. You lose 20% of the points available to each answer in your question for
cach incorrect attempt at that answer For multiple-chaice questions, the penalty depends on the
number of choices available 10 Incorrect. There are three correct answers. The binding of the
sigma factor to the RNA polymerase core enzyme forms the RNA polymerase holoenzyme. Only
the holoenzyme binds to the promoter 12 1 13 14 2 15 3 O eTextbook 80 Help With This Topic 0
Pronous #Try Again O Next Exit L 10:02 PM Type here to search 1/16/2018 2
Solution
Option 1, 3,5 are correct
Explanation:
Binding of the sigmafactor to the RNAenzyme core catalyst forms the RNAenzyme holoenzyme.
solely the holoenzyme binds to the promoter. while not the sigmaissue, RNAenzymeis going to
be unable to bind the promoter and transcription initiation won\'t occur. Any RNAenzyme that
has completed transcription initiation and has begun elongation can complete transcription as a
result of the sigmaissueisn\'trequired for elongation. However, no any initiation are going to
bepotential at the elevated temperature.