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couple007 couple007
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11 years ago
What family of genes are frequently carried by bacterial transposons?
A.  Antibiotic resistance
B.  F factor
C.  Origins of replication
D.  Restriction endonucleases
E.  Toxin production


Transcriptional activating proteins function in the regulation of eukaryotic gene expression by:
A.  mediating the binding of the sigma subunit to RNA polymerase.
B.  preventing the binding of repressor proteins to the operator region of DNA.
C.  preventing nucleosomes from assembling over downstream promoter elements and the transcription initiation site.
D.  engaging in protein-protein interactions with core components of the transcription initiation complex.
E.  Both C and D.


Which of the following is not a mechanism for regulation of eukaryotic gene expression?
A.  phosphorylation of transcription factors
B.  alternative splicing
C.  deletion of genes
D.  RNA editing
E.  alternative polyadenylation
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Staff Member
A year ago
Q1
A

Q2
D

Q3

c
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