Question

Given below are two statements:
Statement (I): Virus transmission by whitefly is persistent and circulative type.
Statement (II): Virus transmission by hoppers is circulative and usually propagative type.

• A. Both Statement (I) and Statement (II) are true.
• B. Both Statement (I) and Statement (II) are false.
• C. Statement (I) is true but Statement (II) is false.
• D. Statement (I) is false but Statement (II) is true.

Hint:

Whiteflies = circulative; Hoppers = usually circulative but not always propagative.

Answer 1

The Correct Option is C

Step 1: Whitefly-transmitted viruses fit the persistent-circulative category, so Statement I is true.
Step 2: Hopper-transmitted viruses are not all propagative; many remain simply circulative, so calling it 'usually propagative' is inaccurate, making Statement II false.
Step 3: Correct answer: Statement (I) is true but Statement (II) is false.