Question

Match List-I with List-II:

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

Hint:

Know the virus-vector pairs—Tospovirus = thrips, Begomovirus = whitefly, Potyvirus = aphid, Badnavirus = mealybug.

Answer 1

The Correct Option is D

Potyviridae viruses are transmitted by aphids (III)
Tospoviruses are transmitted by thrips (I)
Badnaviruses are associated with mealybugs (IV)
Begomoviruses are transmitted by whiteflies (II)

Answer 2

Vector-family cross-check:
Each plant virus family has a well-documented, near-exclusive insect vector group. Potyviridae members are transmitted in a non-persistent manner by aphids. Tospoviruses, unlike most plant viruses, are transmitted by thrips rather than aphids or whiteflies. Badnaviruses are unusual among these four in being spread mainly by mealybugs rather than winged aphids or thrips. Begomoviruses are the classic whitefly-transmitted group, spread persistently by Bemisia tabaci. Matching each virus family strictly to its unique vector rules out every other combination.
The correct matching is A-(III) aphids, B-(I) thrips, C-(IV) mealybugs, D-(II) whiteflies.