Q. Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells)
A) both sense and anti-sense RNA
B) a particular hormone
C) an antifeedant
D) a toxic protein
Explanation
[Solution from source] Nematode-resistant tobacco uses RNA interference. The introduced DNA makes both sense and antisense RNA, which pair into double-stranded RNA that silences the nematode's mRNA, so no toxin or hormone is involved. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.