Question

Assertion (A): In Griffith's experiment, a mixture of heat-killed virulent bacteria R and live non-virulent bacteria S, lead to the death of mice.

Reason (R): Transforming principle got transferred from heat-killed R strain to S strain and made it virulent.

Options

• Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

• Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

• Assertion (A) is true but reason (R) is false.

• Both assertion (A) and reason (R) are false.

Answer 1

Both assertion (A) and reason (R) are false.

Explanation:

Both statements are false. Griffith used heat-killed virulent S bacteria mixed with live non-virulent R bacteria, not the reverse; the transforming principle came from the heat-killed S strain.