A characteristic showing continuous variation is controlled by a
Dominant gene
Recessive gene
Mutant gene
Number of genes
The polytene chromosomes were discovered for the first time in
In-vitro template independent $RNA$ synthesis is a feature of
During polymerisation of deoxyribonucleosides triphosphates in bacteria which of the following enzyme is mainly required?
The genes, which are confined to differential region of $Y$ chromosome only, are called
On the basis of which activity of bacteria it has been proved for the first time that $DNA$ is genetic material