Introduction to Biotechnology MCQs with answers Page - 3

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Q. The principle of transformation was given by

  • (A) Griffith
  • (B) Hersey and Chase
  • (C) Avery
  • (D) McCarty

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Q. What is true about Bt toxin?

  • (A) Bt protein exists as active toxin in the Bacillus
  • (B) The activated toxin enters the ovaries of the pest to sterilise it and thus prevent its multiplication
  • (C) The concerend Bacillus has antitoxins
  • (D) The inactive protoxin gets converted into active form in the insect gut

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Q. Glyoxylate pathway was discovered by

  • (A) Krebs
  • (B) Kornberg and Krebs
  • (C) Beevers
  • (D) Slater

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Q. Who for the first time resolved that the nuclei are composed of exclusively nucleic acid?

  • (A) Hargovind Khorana
  • (B) F. Miescher
  • (C) J. D. Watson and F. Crick
  • (D) A. Kornberg

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Q. The intron splicing was studied in detail by

  • (A) Marshall Nirenberg
  • (B) Matthew Mselson
  • (C) Thomas Cech
  • (D) Hargovind Khorana

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Q. The microbia used in paper industry are

  • (A) Pseudomonas putida
  • (B) Klebsilella plantiola
  • (C) E. coli
  • (D) Phanerochaete chrysosporium

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Q. In order to isolate cDNA for a specified protein from a mice cDNA library prepared in λgt11 vector which of the following methods you will choose for screening?

  • (A) Recombinational
  • (B) Immunochemical
  • (C) Polymerase chain reaction
  • (D) Yeast two hybrid screen

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Q. Flavr Savr variety of tomato is a

  • (A) High yielding variety
  • (B) Transgenic crop
  • (C) Mutated form
  • (D) Somaclonal variety

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Q. Based upon the features of F factor, Shizuya et al., in 1992 developed a high capacity insert vector, which is very much in use for preparing genomic library of higher organisms. What is the name of the vector?

  • (A) BAC vector
  • (B) PAC vector
  • (C) YAC vector
  • (D) Phagmid vector

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Q. In Bt cotton, a transgenic plant, Bt refers to

  • (A) Botanical
  • (B) Beta
  • (C) Biotechnology
  • (D) Bacillus thuringiensis

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