Which of the following is considered a housekeeping protein?
A. cortisol
B. an antibody
C. hemoglobin
D. RNA polymerase
E. insulin correct answersD
Which would be the best method for determining which genes are being transcribed in a particular cell type?
A. RNA sequencing (RNA seq)
B. D...
Which of the following is considered a housekeeping protein?
A. cortisol
B. an antibody
C. hemoglobin
D. RNA polymerase
E. insulin correct answersD
Which would be the best method for determining which genes are being transcribed in a particular cell
type?
A. RNA sequencing (RNA seq)
B. DNA sequencing
C. electron microscopy
D. X-ray crystallography
E. NMR spectroscopy correct answersA
Which form of control directly influences which mRNAs are selected by ribosomes for the synthesis of
proteins?
A. translational control
B. protein activity control
C. transcriptional control
D. mRNA processing and localization control
E. mRNA degradation control correct answersA
Although all of the steps involved in expressing a gene can in principle be regulated, what is the most
important stage of control for most genes?
A. RNA processing
B. mRNA translation
, C. RNA transport and localization
D. transcription initiation
E. mRNA degradation correct answersD
At any given time, a typical differentiated human cell will express how many of its approximately 19,000
protein-coding genes?
A. from 5000 to 15,000
B. about 200
C. about 20
D. all 19,000 correct answersA
How or where do most transcription regulators bind?
A. to the minor groove of DNA
B. to the major groove of RNA
C. to a DNA sequence called the homeodomain
D. to a DNA sequence called a leucine zipper
E. as dimers correct answersE
Which of the following statements about eukaryotic activator proteins is false?
A. They stimulate transcriptional initiation by opening up the double helix.
B. They stimulate transcription initiation by recruiting proteins that modify chromatin structure.
C. They stimulate transcription initiation by aiding in the assembly of general transcription factors and
RNA polymerase at the promoter.
D. They stimulate transcription initiation by promoting the assembly of a transcription initiation complex
at the promoter. correct answersA
What is an operon?
A. a set of genes transcribed as a single mRNA from a single promoter
B. a sequence of DNA that produces a variety of mRNAs
C. a set of genes controlled by the binding of two or more transcription regulators
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