Q. Disease causing organisms are identified by using

  • (A) MAb's
  • (B) Gene transfer
  • (C) DNA probes
  • (D) Microprojectiles
πŸ’¬ Discuss
βœ… Correct Answer: (C) DNA probes

Q. The bond between suger and nitrogenous base in case of DNA is known as

  • (A) Glycosidic bond
  • (B) Phosphodiester bond
  • (C) Peptide bond
  • (D) None fo these
πŸ’¬ Discuss
βœ… Correct Answer: (A) Glycosidic bond

Q. Which among the following is not used as vector for gene cloning?

  • (A) Cosmid
  • (B) Phagemid
  • (C) PAC
  • (D) MAC
πŸ’¬ Discuss
βœ… Correct Answer: (D) MAC

Q. Methanogenic bacteria are

  • (A) Anaerobic in nature
  • (B) Aerobic in nature
  • (C) Micro aerophillic in nature
  • (D) Saprophitic in nature
πŸ’¬ Discuss
βœ… Correct Answer: (A) Anaerobic in nature

Q. The connecting molecule between Glycolysis and TCA cycle is

  • (A) Acetyl Co A
  • (B) Acyl Co A
  • (C) Pyruvate Co A
  • (D) None of the above
πŸ’¬ Discuss
βœ… Correct Answer: (A) Acetyl Co A

Q. Bacteria possessing restriction enzymes get not affected because

  • (A) Their genome is demethylated
  • (B) Their genome is methylated
  • (C) These enzymes are present in less concentration
  • (D) Their genome lack unique restriction sites for enzymes
πŸ’¬ Discuss
βœ… Correct Answer: (B) Their genome is methylated

Q. Non-organized mass of cell is

  • (A) Embryoid
  • (B) Protocorm
  • (C) Callus
  • (D) Endoperm
πŸ’¬ Discuss
βœ… Correct Answer: (C) Callus

Q. Operon comprise of

  • (A) Operator
  • (B) Structural gene
  • (C) Promoter
  • (D) All of the above
πŸ’¬ Discuss
βœ… Correct Answer: (D) All of the above

Q. Essential constituents of a cloning vector are

  • (A) Replicon, promoter and selectable marker
  • (B) Replicon, unique restriction site and selectable marker
  • (C) Promoter, operatop and restriction site
  • (D) Replicon, unique restriction site and promoter
πŸ’¬ Discuss
βœ… Correct Answer: (B) Replicon, unique restriction site and selectable marker

Q. When producing human serum albumin (HSA) in transgenic plants, what would be an advantage of incorporating the transgene into the chloroplast genome?

  • (A) HSA diverts too many amino acids if expressed in cytoplasm
  • (B) HSA becomes allergenic if expressed in cytoplasm
  • (C) HSA is toxic to plants if expressed in cytoplasm
  • (D) HSA is degraded by plant enzymes if expressed in cytoplasm
πŸ’¬ Discuss
βœ… Correct Answer: (D) HSA is degraded by plant enzymes if expressed in cytoplasm

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