MCQ Bank
Specific Transcription Factors are proteins that bind to response elements or to sequences called ____________ that are located near a gene.
- A) All of given
- B) Enhancer
- C) Repressor
- D) Promoter
cluster of bacterial genes along with promoter that controls the transcription of those genes is called
- A) Genes cluster
- B) co-operon
- C) Gene family
- D) operon
During transcription in bacteria, sigma factors bind to ________ polymerases.
Neither DNA nor RNA
- A) DNA
- B) Both DNA and RNA
- C) RNA
- D) Neither DNA nor RNA
The effects of__________ are independent of position. They may be upstream, downstream, or within an intron.
- A) All of given
- B) Enhancer
- C) Promoter
- D) Repressor
Eukaryotic gene expression can be regulated at one of the following levels.
- A) All of given
- B) RNA processing
- C) Transcription
- D) Translational level
In __________ transcription and translation may take place simultaneously.
- A) Prokaryote
- B) Both Eukaryote and Prokaryote
- C) All of given
- D) Eukaryote
..........is a protein binds to DNA to prevent transcription of adjacent gene
- A) replicator
- B) inhibitor
- C) Transducer
- D) Repressor
Gene products of ..............(e.g., tRNAs, rRNAs, ribosomal proteins, DNA and RNA polymerase subunit, ATP and GTP) are essential components of almost all living cells
- A) Non important genes
- B) important genes
- C) Constitutive genes
- D) Junk genes
..............are regions of genomes that exhibit elevated rates of recombination relative to a neutral expectation
- A) Recombination centers
- B) Recombination loci
- C) Recombination hotspots
- D) Recombination setpoints
are proteins that bind to specific DNA sequences within the promoter to facilitate RNA polymerase alignment.
- A) Ordinary transcription factors
- B) Basic translation factors
- C) Basal transcription factors
- D) Basic transcription factors
Operons are genes found in the form of groups within genome of _______.
- A) Prokaryote
- B) Eukaryote
- C) Both Eukaryote and Prokaryote
- D) All of given
Some chromosomal regions are more prone to rearrangement than others and thus are .........
- A) the source of cancer
- B) the source of nuisance
- C) the source of evolution
- D) less important
Exons Shuffling helps in
- A) Genome devolution
- B) Genome Evolution
- C) Genome deletoon
- D) Genome insertion
Transcription factors bind to specific regions of___________ and stimulate or inhibit transcription.
- A) RNA
- B) miRNA
- C) DNA
- D) Protein
The existence of____________ in prokaryotes is extremely rare.
- A) DNA
- B) Introns
- C) RNA
- D) Exons
__________ RNA codes for more than one polypeptide chain.
- A) Transcistronic
- B) Polycistronic
- C) Multicistronic
- D) Monocistronic
Double strand break is ........ than single stranded breaks.
- A) both Severe and difficult to repare
- B) less severe
- C) difficult to repare
- D) Severe
Mechanism by which a gene's information is converted into the structures and functions of a cell by producing a biologically functional molecule protein or RNA
is called
- A) Gene translation mechanisms
- B) Gene expression mechanism
- C) none of the given options
- D) Gene transcription mechanisms
Prokaryotes have ....... which are functionally related genes grouped together on chromosome.
- A) genomes
- B) inducers
- C) promoters
- D) operons
Basal transcription factors are proteins that bind to specific DNA sequences within the ____________ to facilitate RNA polymerase.
- A) Promoter
- B) All of given
- C) Repressor
- D) Enhancer