"Cytochimeras'' means
Cells having haploid number of chromosomes
Cells having two nuclei
Cells having different chromosomes than other vegetative cells
None of the above
Plasmids are composed of
Okazaki fragments are synthesised on
Who discovered "Reverse transcription''
The total number of nitrogenous bases in human genome is estimated to be about
The genes, which are confined to differential region of $Y$ chromosome only, are called