Infestation by tobacco budworm and armyworm is prevented by Bt toxin. These insects belong to order
Coleoptera
Lepidoptera
Diptera
Hymenoptera
In human type(s) of interferon present is (are)
Streptomycin is produced by or from which micro-organism streptomycin is prepared
A transgenic food crop which may help in solving the problem of night blindness in developing countries is
Find out the wrong statement.
Palaeontologists unearthed a human skull during excavation. A small fragment of the scalp tissue was still attached to it. Only little $DNA$ could be extracted from it. If the genes of the ancient man need to be analysed, the best way of getting sufficient amount of $DNA$ from this extract is