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Match the organism with its use in biotechnology.

1. (a) Bacillus thuringiensis (i) Cloning vector
2. (b) Thermus aquaticus (ii) Construction of first rDNA molecule
3. (c) Agrobacterium tumefaciens (iii) DNA polymerase
4. (d) Salmonella typhimurium (iv) Cry proteins Select the correct option from the following: (A) (iv) (iii) (i) (ii) (B) (iii) (iv) (i) (ii) (C) (iii) (iv) (ii) (i) (D) (ii) (iv) (iii) (i)

Correct answer: (a) Bacillus thuringiensis (i) Cloning vector

Solution

Bacillus thuringiensis is known for producing Cry proteins, so it is not the cloning vector. The correct matching is: Thermus aquaticus → DNA polymerase, Agrobacterium tumefaciens → cloning vector, and Salmonella typhimurium → construction of first rDNA molecule.

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