A repressor that becomes active when bound to a corepressor and inhibits transcription.
A gene that binds a repressor and becomes active.
An activator that becomes active when bound to a coactivator and activates transcription.
A repressor that binds a gene and becomes inactive.
The repressor is able to bind to the operator.
The repressor is unable to bind to the operator.
Transcription of structural genes occurs.
Transcription of lactose occurs.
Both b and c are correct.
The repressor is able to bind to the operator.
The repressor is unable to bind to the operator.
Transcription of the repressor is inhibited.
Transcription of the structural genes, operator, and promoter occurs.
Code for the repressor protein.
Bind with RNA polymerase.
Bind to the repressor.
Code for the regulator gene.
The regulator gene is transcribed with the structural genes.
The structural genes are always transcribed.
All genes are always transcribed.
The regulator gene has its own promoter.
Posttranslational control
Transcriptional control
Posttranscriptional control
Translational control
Both b and c are correct.
Posttranslational control
Alternative mRNA splicing
Binding of a transcription factor
Chromatin remodeling
MiRNAs
Nucleus
Cytoplasm
Nucleolus
Mitochondria
Transcriptional
Posttranscriptional
Translational
Posttranslational
Heterochromatin
Euchromatin
The histones, not the DNA
The DNA, not the histones
Both a and D are correct
Genetically active X chromosomes in males.
Genetically inactive X chromosomes in females.
Genetically active Y chromosomes in males.
Genetically inactive Y chromosomes in females.
Exposure of the cell to radiation
Exposure of the cell to certain chemicals
Viral infection of the cell
Exposure of the cell to pollutants
All of these are correct
A proto-oncogene.
A tumor suppressor gene.
Regulation of the cell cycle.
Tumor cells.
All of these are correct.
Inhibits cell division
Opposes oncogenes
Prevents cancer
Is subject to mutations
All of these are correct
CAT CAT CAT G
G CAT CAT CAT
GCA TCA TCA T
GC ATC ATC AT
Frameshift mutation.
Transposon.
Deletion mutation.
Point mutation.
Insertion mutation.
It may involve a lack of mutations over a length of time.
It cannot be tied to particular environmental factors.
Apoptosis is one of the first developmental effects.
Mutations in certain types of genes.
It typically develops within a short period of time.
Euchromatin/heterochromatin
Existence of transcription factors
Lampbrush chromosomes
Occurrence of mutations
All of these are correct.
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