$A$ : Antibiotics like penicillin can be used to treat common cold.
$R$ : Penicillin causes lysis of viral cells.
Assertion and Reason both are correct and also correct explanation.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
Which of the following plants are used to treat bone fractures?
In the given flow chart, the replication of retrovirus in a host cell is shown. Observe it carefully and fill up the blank $A, B$ and $C$
Give scientific reasons : Hepatitis $B$ and Bird flu $DNA$ vaccines are called Recombinant $DNA$ vaccines.