Q38 / 240 · KCET 2026 · Biology
Given below are two statements.
Statement-I: Baculoviruses are pathogens that attack nematodes.
Statement-II: Baculoviruses are used as biological control agents in ecologically sensitive areas as they are species-specific in their action.
In the light of the above statements, choose the correct answer from the options given below.
Statement-I: Baculoviruses are pathogens that attack nematodes.
Statement-II: Baculoviruses are used as biological control agents in ecologically sensitive areas as they are species-specific in their action.
In the light of the above statements, choose the correct answer from the options given below.
- ABoth Statement I and Statement II are true
- BBoth Statement I and Statement II are false
- CStatement I is true, but Statement II is false
- Correct answerDStatement I is false, but Statement II is true
Solution
Baculoviruses are pathogens that attack insects and other arthropods, not nematodes. Therefore, Statement-I is false.
The majority of baculoviruses used as biological control agents belong to the genus Nucleopolyhedrovirus. These viruses are excellent candidates for species-specific, narrow spectrum insecticidal applications. They have no negative impacts on plants, mammals, birds, fish, or even non-target insects. This makes them highly suitable for use in ecologically sensitive areas or in integrated pest management (IPM) programmes. Therefore, Statement-II is true.
Answer: Statement I is false, but Statement II is true
The majority of baculoviruses used as biological control agents belong to the genus Nucleopolyhedrovirus. These viruses are excellent candidates for species-specific, narrow spectrum insecticidal applications. They have no negative impacts on plants, mammals, birds, fish, or even non-target insects. This makes them highly suitable for use in ecologically sensitive areas or in integrated pest management (IPM) programmes. Therefore, Statement-II is true.
Answer: Statement I is false, but Statement II is true
Hence, the correct answer is option: 'D'.