Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R) :

Assertion (A) : In vitro testing forms the basis for hazard identification.

Reason (R) : In vitro studies are performed within the same biological entities.

In the light of the above statements, choose the correct answer from the options given below :

Key Points 

Assertion (A): In vitro testing forms the basis for hazard identification.

Explanation:

• An in vitro study occurs in a controlled environment, such as a test tube or petri dish. In vivo is Latin for “within the living.” It refers to tests, experiments, and procedures researchers perform in or on a whole living organism, such as a person, laboratory animal, or plant.
• In vitro testing forms the basis for hazard identification
• n vitro diagnostics can detect diseases or other conditions and can be used to monitor a person's overall health to help cure, treat, or prevent diseases

Hence Assertion (A) is true 

Reason (R): In vitro studies are performed within the same biological entities.

Explanation:

• In vivo" means research on a living organism, while "in vitro" means research done in a laboratory dish or test tube.
• Both types of studies are used by medical researchers developing drugs or studying diseases.

Hence  Reason (R) is false.

Therefore we can say that (A) is true, but (R) is false.