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Biotechnology and its Applications — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYBiotechnology and its Applications1 Mark
Question
Two statements are given-one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below.
  1. Both assertion and reason are true and reason is the correct explanation of assertion.
  2. Both assertion and reason are true but reason is not the correct explanation of assertion.
  3. Assertion is true but reason is false.
  4. Both assertion and reason are false.
Assertion: Agrobaderiurm tumefaciens is called natural genetic engineer.
Reason: Agrobacterium tumefaciens infects all broad-leaved agricultural crops but does not infect cereal crops.
✓

Answer

  1. Both assertion and reason are true but reason is not the correct explanation of assertion.
Explanation:

Ti plasmid (tumor inducing) from Agro-bacteriurn tumefaciens is effectively used as a vector for gene transfer to plant cells. In nature, it induces tumors in broad leaf crops, e.g., tomato, soybean, cotton, etc.

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