MCQ
Microbes found to be very useful in genetic engineering are
  • Escherichia coli and Agrobacterium tumefaciens
  • B
    Vibrio cholerae and a tailed bacteriophage
  • C
    Diplococcus sp. And Pseudomonas sp.
  • D
    Crown gall bacterium and Caenorhabditis elegans

Answer

Correct option: A.
Escherichia coli and Agrobacterium tumefaciens
a
Escherichia coli and Agrobacterium tumefaciens are microbes found to be very useful in genetic engineering. $E$. coli is motile, Gram negative, rod shaped bacterium which is a normal inhabitant of human colon. It is most extensively used in bacterial genetics and molecular biology. Agrobacterium tumefaciens is a soil bacterium. It has $T_{i}$ plasmid (Tumour inducing plasmid) and it can be used for the transfer of a desired gene in dicot plants.

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