12th Standard CBSE - Biology - Biotechnology and its Applications

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Question - 1

Biopiracy is related to which of the following:

  • A Traditional knowledge
  • B Biomolecules and regarding bioresource, genes isolated from bioresources
  • C Bioresources
  • D All of the above

Question - 2

Which of the following is used in biowar

  • A A pathogen
  • B Toxin from a pathogen
  • C A delivery system for the bioweapon agent
  • D All of the above

Question - 3

Which of the following combinations of risk are associated with genetically modified food?
I. Toxicity
II. Allergic reaction
III. Antibiotic resistance in micro-organisms present in the alimentary canal.

  • A I and II
  • B I, II and III
  • C I and III
  • D II and III

Question - 4

A transgene expression can achieve which of the following? 

  • A Prevent expression of a native gene.
  • B Modify an existing biosynthetic pathway.
  • C Produce a protein that itself produces the phenotype of interest.
  • D All of the above

Question - 5

Inseect resistance trangenic cotton has been produced by inserting a piece of DNA from

  • A an insect
  • B a bacterium
  • C a wild relative of cotton
  • D a virus

Question - 6

Hybridoma technology has been successfully used in

  • A production of somatic hybrids
  • B synthesis of monoclonal antibodies
  • C synthesis of haemoglobin
  • D production of alcohol in bulk

Question - 7

During "gene cloning" Which is called as "gene taxi"?

  • A Vaccine
  • B Plasmid
  • C Bacterium
  • D Protozoa

Question - 8

Name the drug used in cancer treatment produced by using biotechnology

  • A Terramycin
  • B HGH
  • C Insulin
  • D TSH
  • E Interferon

Question - 9

Cultivation of Bt cotton has been much in the news. The prefix Bt means

  • A "Barium treated" cotton seeds
  • B "Bigger thread" variety of cotton with better tensile strength
  • C Produced by "biotechnology" using restriction enzymes and ligases
  • D Carrying an endotoxin gene from Bacillus thuringiensis

Question - 10

The first antibiotic was discovered by.......

  • A Louis Pasteur
  • B R. Koch
  • C W. Fleming
  • D A.Fleming