Question

Assertion : Abscisic acid $(ABA)$ is also called stress hormone.
Reason : $ABA$ increases the tolerance of plants to various kinds of stresses.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (A)

Abscisic acid increases resistance of plants to cold and other types of stresses like drought and water logging etc. It is therefore also known as stress hormone.