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STD 12 - 10. biotechnology and its application — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 10. biotechnology and its application1 Mark
MCQ
Which of the following is correctly matched?
  • ✓
    Agrobacterium tumefaciens - Tumour
  • B
    Thermos aquaticus - Bt-gene
  • C
    $pBR322 \;-$ Enzyme
  • D
    Ligase - Molecular scissors
✓

Answer

Correct option: A.
Agrobacterium tumefaciens - Tumour
a
Agrobacterium tumefaciens (updated scientific name: Rizobium radiobacte) is the causal agent of crown gall desease (the formation of tumour) in over $140$ species of dicot. It is a rod-shaped, Gram negative soil bacterium (Smith, et. al, $1907$ ).

Symptoms are caused by the insertion of a small segment of $DNA$, known as $T-DNA$ (transfer $DNA$) into the plant cell, which is incorporated at a semi-random location into the plant genome.

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