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NEET MCQ on Regualtion of Gene Expression in Eukaryotes
1.
Eukaryotic entities
in the presence of a cAMP molecule, it carries out protein synthesis
have only operons assisting in gene expression
transcription takes place in the nucleus and translation in the cytoplasm
transcription occurs in the cytoplasm and translation in nucleus
2.
A genomic DNA possesses functioning units, a group of genes under the influence of promoters known as
genes
operons
anticodon
codon
3.
All regulatory proteins possess a common DNA binding motif that is specific flexes in their protein chains permitting them to interlock with
the outside groove of DNA helix
the major groove of DNA helix
the minor groove of DNA helix
the inner groove of DNA helix
4.
Regulatory proteins turn transcription off through binding to a site rapidly at the front of the promoter and many times even overlaps the promoter, this site is the
regulatory site
operator site
suppressor site
transcriptional control site
5.
Seemingly, the vertebrate cells contain a protein which binds to clusters of 5-methylcytosine ensuring that the bound gene stays in the “off” position This regulation on the role of gene regulation is an outcome of
Methylation
Translation
Enhancer expression
operator suppression
6.
The transcriptional gene control in eukaryotes is mediated by
metabolites that bind to the cis-acting elements
trans-acting factors failing to bind to cis-acting elements
trans-acting factors binding to cis-acting elements
repressor proteins that bind to operator sites
7.
Basic tools of genetic regulation are the ability of some proteins to bind to specific
regulatory DNA sequences
regulatory RNA sequences
enzymes of cells
promoter portions of genes
8.
In the regulation of gene expression, this is an incorrect statement
in the bacteria, it permits to replicate with no control
in the bacteria, it permits to adapt to changing environments
permits the maintenance of homeostasis in multicellular entities
permits the functioning of multicellular entities on the whole
9.
There are these many histones in the core of a nucleosome
8
6
4
2
10.
In eukaryotes and bacteria, the most common form of regulation is
promoter control
translation control
repressor control
transcriptional control
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