In lac operon system, Lac gene-i codes for
inducer
repressor
promoter
β- galactosidase
Point mutation involves
insertion
change in single base pair
duplication
deletion
The technique involving insertion of a desired gene into the DNA of plasmid vector is known as
Dressing
splicing
cloning
drafting
tRNA is attached to mRNA by its
1 loop
II loop
III loop
IV loop
Mutations are generally
recessive
polymorphic
lethal
dominant
The proteins are synthesized at
ribosomes
mitochondria
centrosomes
golgi bodies
What is antisense technology?
A cell displaying a foreign antigen used for synthesis of antigens
Production of somaclonal variants in tissue cultures
When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene
RNA polymerase producing DNA
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 nucleotide sequence of an anticodon is complementary to nucleotide sequence in
tRNA
mRNA
rRNA
DNA
Plant which is used by Hugo de Vries for mutation experiment was
Oenothera lamarckiana
Solanum tuberosum
Ficus elastica
None of the above
