Agrobacterium tumefaciens bacteria

Practice Question Solving
1

The diagram shows how recombinant DNA can be used to make cotton plants produce an insect toxin.
The insect toxin kills any insect that can damage the cotton crop.

What are the TWO functions of the Agrobacterium tumefaciens bacteria in this process?
1 They stimulate cell division in cotton plant seeds.
2 They supply the plasmid vector.
3 They are the source of the gene for the production of the insect toxin.
4 They are the source of the gene for antibiotic resistance
1 and 2 only
O
1 and 3 onlv
2 and 4 only
1 and 4 onlv
2 and 3 onlv

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2

Hi!
we can analyze each options to see which of them are correct:

  1. True: we can see that tumors are developing in the cotton seeds, thus stimulating cell division as tumors are uncontrolled mitotic division thus this statement makes sense.
  2. True: from the diagram we can see that the gene is being inserted into the bacteria’s plasmid
  3. False: we can clearly see that the source of gene is Bacillus thuringienses not Agrobacterium.
    4.False: The medium containing the antibiotic is not sourced from the bacteria.
    Hope it helps!
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