Miscellaneous Questions Test

Miscellaneous Questions

This is online test 01 for CBSE class 12 Biology Biotechnology : Principles and Processes (Miscellaneous Questions).. There are 10 questions in this test with each question having around four answer choices.

Questions & Answers

1
Stanley Cohen and Herbert Boyer worked on which bacteria?
  • A
    Salmonella typhimurium
    Correct
  • B
    Aspergillusniger
  • C
    Proteus vulgaris
  • D
    Bacillus subtilis
2
Which of the following is used as selectable marker?
  • A
    Salmonella resistance gene
  • B
    Ampicillin resistance gene
    Correct
  • C
    Plasmid resistance gene
  • D
    Penicillin resistance gene
3
Agarose is extracted from
  • A
    Polysiphonia
  • B
    Gelidium
    Correct
  • C
    Chara
  • D
    Fucus
4
Transfer of DNA into bacteria by phage is called as
  • A
    Transduction
  • B
    Conjugation
  • C
    Transformation
    Correct
  • D
    Hybridisation
5
The smallest bands in the agarose gel will be towards
  • A
    Cathode
  • B
    Wells
  • C
    Middle of the gel
  • D
    Anode
    Correct
6
PCR was discovered by
  • A
    Kary Mullis
    Correct
  • B
    Stanley Cohen
  • C
    Herbert Boyer
  • D
    Hargobind Khorana
7
In pBr322, B and R stands for
  • A
    Boteler and Reeves
  • B
    Boliver and Rodriguez
    Correct
  • C
    Burrage and Russell
  • D
    Brew and Rodrick
8
Nucleosome is seen in
  • A
    S. typhimurium
  • B
    Yeast
    Correct
  • C
    E.coli
  • D
    H. influenza
9
EtBr is a mutagen as
  • A
    It is carcinogenic
  • B
    It causes mutations
    Correct
  • C
    It is used to treat trypanosmosis
  • D
    It fluoresces under UV
10
How bacterial cells protect themselves from the action of their own restriction enzymes?
  • A
    restriction enzymes are present in the vacuoles in the bacterial cells
  • B
    the restriction sites of their genetic material are methylated
    Correct
  • C
    bacterial cells have certain proteins which restrict their action
  • D
    restriction enzymes are inactive in the bacterial cell