Question

There are two statements marked as Assertion (A) and Reason (R). Mark your answer as per the codes provided below:

Assertion (A): Unisexual flowers are incomplete flowers.
Reason (R): Any whorl missing in a flower makes it incomplete.

• A. A is true but R is false
• B. Both A and R are true and R is the correct explanation of A
• C. Both A and R are true but R is not the correct explanation of A
• D. Both A and R are false

Answer 1

The correct option is B Both A and R are true and R is the correct explanation of A

A complete flower has four whorls namely - calyx (sepals), corolla (petals), androecium (stamens) and gynoecium (carpels/pistils).
A flower missing any one of these whorls or structures is considered incomplete.
A unisexual flower is one which has calyx, corolla (accessory whorls) and androceium or gynoecium. The unisexual male flowers have accessory whorls and androecium and lack gynoecium. The unisexual female flowers have accessory whorls and gynoecium and lack androecium. Thus the reason is the correct explanation of the assertion.