Q114 / 120 · NEET 2012 (Mains) · Zoology

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

  • Correct answer
    A
    both sense and antisense RNA
  • B
    a particular hormone
  • C
    an antifeedant
  • D
    a toxic protein

Solution

Antisense RNA can be produced by inverting a cDNA copy of an mRNA with respect to the promoter in an expression vector. This yields a full length complementary copy of the mRNA sequence. Antisense RNA molecule are thought to interact with mRNA molecule by base pairing to form double stranded RNA.

Hence, the correct answer is option: 'A'.

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