Question

Match List I with List II

List I (Outbreeding device)	List II (example)
(A). Unisexuality	(I). Gloriosa
(B). Protandry	(II). Mulberry
(C). Protogyny	(III). Apple
(D). Prepotency	(IV). Disc florets of sunflower

Choose the correct answer from the options given below:

• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
• (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
• (A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Hint:

Match each device with its plant example using the standard NCERT examples.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept
Outbreeding devices are features that prevent self-pollination and promote cross-pollination.

Step 2: Match the pairs
Unisexuality (dicliny): mulberry, so (A) - (II).
Protandry, where anthers mature first: disc florets of sunflower, so (B) - (IV).
Protogyny, where the stigma matures first: Gloriosa, so (C) - (I).
Prepotency, where foreign pollen germinates faster: apple, so (D) - (III).

Step 3: Select the option
This combination is given in option (B).

Final Answer:
The correct matching is (A)-(II), (B)-(IV), (C)-(I), (D)-(III). \[ \boxed{\text{(B) }\text{(A) - (II), (B) - (IV), (C) - (I), (D) - (III)}} \]