Question

Assertion : Vernalisation is the promotion of flowering by a period of low temperature.
Reason : It prevents precocious reproductive development late in the growing season.

• 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: (B)

There are plants for which flowering is either quantitatively or qualitatively dependent on exposure to low temperature. This treatment is termed as vernalisation. It prevents precocious reproductive development late in the growing season, and enables the plant to have sufficient time to reach maturity.