Q. "All living cells arise from pre-existing cells" was proposed in cell theory by

  • (A) Schleiden and Schwann
  • (B) Rudolf Virchow
  • (C) Dutrocht
  • (D) Pasteur
πŸ’¬ Discuss
βœ… Correct Answer: (A) Schleiden and Schwann

Q. The first genetically engineered human protein was

  • (A) Interferon
  • (B) Insulin
  • (C) Somatostatin
  • (D) Streptokinase
πŸ’¬ Discuss
βœ… Correct Answer: (C) Somatostatin

Q. Development of adventitious organs in the callus tissue is called

  • (A) Embryogenesis
  • (B) Organogenesis
  • (C) Megasporogenesis
  • (D) Sporogenesis
πŸ’¬ Discuss
βœ… Correct Answer: (B) Organogenesis

Q. One of the following scientists is associated with the development of gene gun?

  • (A) Hargovind Khurana
  • (B) D. Baltimore
  • (C) Eric Reeves
  • (D) J. C. Sanford
πŸ’¬ Discuss
βœ… Correct Answer: (D) J. C. Sanford

Q. Who among the following is related to transposons or mobile gene?

  • (A) McClintock Barbara
  • (B) Hersey and Chase
  • (C) Jacob and Monad
  • (D) Ramakrishnan
πŸ’¬ Discuss
βœ… Correct Answer: (A) McClintock Barbara

Q. The transgenic animals are those which have

  • (A) Foreign RNA in all its cells
  • (B) Foreign DNA in some of its cells
  • (C) Foreign DNA in all its cells
  • (D) Both A and B
πŸ’¬ Discuss
βœ… Correct Answer: (C) Foreign DNA in all its cells

Q. Crown gall disease in plants is caused by

  • (A) Ti plasmid
  • (B) Pi plasmid
  • (C) Bacteria
  • (D) Virus
πŸ’¬ Discuss
βœ… Correct Answer: (A) Ti plasmid

Q. Dr. Anand Mohan Chakraborty is credited with designing of a bacterial strain . . . . . . . . capable of metabolizing hydrocarbon.

  • (A) Pseudomonas putida
  • (B) Bacillus thuringiensis
  • (C) Bacillus subtilis
  • (D) Chlamydiaspp
πŸ’¬ Discuss
βœ… Correct Answer: (A) Pseudomonas putida

Q. Who discovered conjugation in bacteria?

  • (A) F. C. Bawden
  • (B) G. W. Beadle and E. Tatum
  • (C) J. Lederberg and E. Tatum
  • (D) None of the above
πŸ’¬ Discuss
βœ… Correct Answer: (C) J. Lederberg and E. Tatum

Q. Hybridoma is biotechnique which involves fusion of

  • (A) B-cell with T-cell
  • (B) T-cell with spleen cell
  • (C) Spleen cell with myeloma cell
  • (D) Myeloma cell with B-cell
πŸ’¬ Discuss
βœ… Correct Answer: (D) Myeloma cell with B-cell

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