‘Polio' is caused by
A bacteriophage
A virus with single strand $RNA$
A virus with single strand $DNA$
A virus with double strand $DNA$
Assertion: $LSD$ and marijuana are clinically used as a analgesics.
Reason: Both these drugs suppress brain function.
‘Vaccination' was invented by
Which is a water-borne disease
Full forms : $ELISA$ &$ PCR$
The inability to distinguish between self cells and non-self cells may lead to