Question

Match Column-I with Column-II and select the correct option. 
Column-I            Column-II 
a) Sunflower        i) Protogyny 
b) Castor             ii) Self incompatibility 
c) Michellia           iii) Protandry 
d) Orchid              iv) Unisexuality 
 

• A. a - iii, b - iv, c - ii, d - i
• B. a - ii, b - iii, c - iv, d - i
• C. a - iii, b - i, c - ii, d - iv
• D. a - iv, b - ii, c - i, d - iii

Hint:

Protandry and protogyny are types of sexual expression in plants where the maturation of male and female parts occurs at different times.

Answer 1

The Correct Option is A

Step 1: Understanding the terms.
- Sunflower exhibits protandry, meaning the male parts mature first, followed by the female parts.
- Castor has unisexual flowers, where male and female flowers are present on separate plants.
- Michellia exhibits self-incompatibility, meaning it cannot self-pollinate.
- Orchid displays protogyny, where the female parts mature first.
Step 2: Analyzing the options.
(A) a - iii: Correct, sunflower exhibits protandry.
(B) b - iv: Correct, castor has unisexual flowers.
(C) c - ii: Correct, Michellia shows self-incompatibility.
(D) d - i: Correct, orchids show protogyny.
Step 3: Conclusion.
The correct answer is (A) a - iii, b - iv, c - ii, d - i.