Final Exam iClicker Questions Biochem 2024/2025 with 100% correct answers
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Course
IClicker Qu Biochem
Institution
IClicker Qu Biochem
Chp 21: What is the region immediately adjacent to the
starting site for RNA polymerization called?
A) promoter
B) enhancer
C) initiator
D) consensus sequence
E) TF binding site
A) promoter
Chp 21: Which of the eukaryotic transcription factors is
responsible for binding the TATA box?...
Chp 21: Addition of a(n) _____ group to certain lysine residues of a histone protein makes the region of
chromatin transcriptionally _____; addition of a(n) _____ group to certain lysine residues makes the
region of chromatin transcriptionally _____.
A) methyl; highly active; acetyl; active
B) acetyl; silent; methyl; active
C) phosphate; silent; methyl; silent
D) methyl; silent; acetyl; active
, E) methyl; silent; phosphate; active correct answersD) methyl; silent; acetyl; active
Chp 21: Genes that are not often transcribed generally have _____ sequences that bind to _____
proteins.
E) all of the above correct answersB) lac repressor
Chp 21: Which of the following best describes the functioning of the lac repressor protein?
A) in the presence of allolactose, the protein binds the operator inhibiting transcription
B) in the presence of allolactose, the protein binds the operator enhancing transcription
C) in the absence of allolactose, the protein binds the operator inhibiting transcription
D) in the absence of allolactose, the protein binds the operator enhancing transcription
E) none of the above correct answersC) in the absence of allolactose, the protein binds the operator
inhibiting transcription
Chp 21: Separation of DNA into a single stranded region around RNA polymerase creates _____.
A) hybridized DNA
B) a transcription bubble
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