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Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells):

  1. A
    A toxic protein
  2. B
    Both sense and anti-sense RNA
  3. C
    A particular hormone
  4. D
    An antifeedant

Solution & Step-by-step Explanation

Using RNA interference (RNAi) technique, DNA that produces both sense and anti-sense RNA is introduced. These two RNAs form a double-stranded RNA (dsRNA) which silences the specific mRNA of the nematode, preventing its survival in the host.

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Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells):
A
A toxic protein
B
Both sense and anti-sense RNA
C
A particular hormone
D
An antifeedant

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