$Y$ gene in lac operon responsible for .....
Codes for $\beta$ - galactosidase
Primaryly responsible for hydrolysis of the disaccharide
Encodes for transacetylase.
Codes for permease.
The condensation of the chromosomes are maximal with visible centromeres at which phase of cell cycle
The total number of nitrogenous bases in human genome is estimated to be about
The frequency of a mutant gene in a population is expected to increase, if the gene is
Jumping genes are found in
Satellite $DNA$ is present in