$B.C.G.$ vaccine is used against
$T.B.$
Leprosy
Food poisoning
None of these
Cancer cells are more easily damaged by radiation than normal cells because they are
Discuss with your teacher what does 'a suitable gene' means, in the context of $DNA$ vaccines.
Which disease is caused by a nematod
Humoral immunity is due to
Which one of the following is a stimulant?