Point mutation involves
insertion
change in single base pair
duplication
deletion
Number of nitrogenous bases in a codon is
3
2
1
5
RNA polymerase stops its activity by
rho(ρ)factor
sigma (σ) factor
UAG
AUG
During transcription, the nucleotide sequence of the DNA strand that is being coded is ATACG, then the nucleotide sequence in the mRNA would be
TATGC
TCTGG
UAUGC
UATGG
The number of punctuation codons in a genetic code are
2+3=5
1+3=4
1+1=2
Mutations are generally
recessive
polymorphic
lethal
dominant
Mutation is more common when it is present in
recessive condition
dominant condition
constant in population
None of the above
During translation initation in prokaryotes, a GTP molecule is needed in
association of 30S,mRNA with formy1-met-tRNA
associaton of 50S subunit of ribosome with initiation complex
formation of formy1-met-tRNA
binding of 30 subunits of ribosome with mRNA
When a mutation is limited to the substitution of one nucleotide for another it is called
translocation
point mutation
base inversion
sugar phosphate deletion
The promoter region in a lac operon is distinguishable into the following number of segments
Three
four
two
five
