πŸ“Š Introduction to Biotechnology
Q. The Hersey and Chase experiment which offered evidence in support of DNA being the genetic material in bacteriophage made use of the following labeled compounds?
  • (A) Phosphorous and sulfur
  • (B) Nitrogen and oxygen
  • (C) Tritium
  • (D) Hydrogen
πŸ’¬ Discuss
βœ… Correct Answer: (A) Phosphorous and sulfur
πŸ“Š Introduction to Biotechnology
Q. Pyrethrum is obtained from
  • (A) Chrysanthemum cinerarifolium
  • (B) Nicotiana sp
  • (C) Derris elliptica
  • (D) Lonchocarpus nicou
πŸ’¬ Discuss
βœ… Correct Answer: (A) Chrysanthemum cinerarifolium
πŸ“Š Introduction to Biotechnology
Q. Bacillus thuringiensis (Bt) strains have been used for designing novel
  • (A) Biofertilizers
  • (B) Bio-metallurgical techniques
  • (C) Bio-mineralization processes
  • (D) Bioinsecticidal plants
πŸ’¬ Discuss
βœ… Correct Answer: (D) Bioinsecticidal plants
πŸ“Š Introduction to Biotechnology
Q. Rockefeller group discovered that the extract of dead capsule forming Pneumococci could transform a non-capsulated strain. What transforming material was present in the extract of the dead strain?
  • (A) Denatured proteins
  • (B) t-RNA
  • (C) DNA
  • (D) Toxins
πŸ’¬ Discuss
βœ… Correct Answer: (C) DNA
πŸ“Š Introduction to Biotechnology
Q. Identify the incorrect match
  • (A) Koch ⇔ Germ theory
  • (B) Pasteur ⇔ Blood clotting theory
  • (C) Halsted ⇔ Modern surgical principles
  • (D) Lavoisier ⇔ Oxygen theory of combustion
πŸ’¬ Discuss
βœ… Correct Answer: (B) Pasteur ⇔ Blood clotting theory
πŸ“Š Introduction to Biotechnology
Q. Virus free plants can be produced from one infected mother plant by micropropagation from
  • (A) Apical meristem culture
  • (B) Anther culture
  • (C) Leaf tip culture
  • (D) Stem culture
πŸ’¬ Discuss
βœ… Correct Answer: (A) Apical meristem culture

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