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Class 12 Biology
Biotechnology : Principles And Processes Chapter 11
Quiz 1
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Use of biology in industrial process and for improving quality of life is called:
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Biotechnology
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Eugenics
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Microbiology
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Genetic engineering
Who discovered recombinant DNA (rDNA) technology?
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James D. Watson
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Walter Sutton and Avery
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Stanley Cohen and Herbert Boyer
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Har Gobind Khorana
Restriction endonuclease
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Cuts the DNA molecule at specific sites
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Synthesizes DNA
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Restricts the synthesis of DNA inside the nucleus
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Cuts the DNA molecule randomly
Plasmid is a:
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Extra chromosomal DNA in bacterial cell
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Fungus
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Plastid
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Part of plasma membrane
One of the key factors, which makes plasmid the vector in genetic engineering is that
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It is resistant to antibiotics.
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It is resistant to restriction enzymes.
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It has the ability to carry a foreign gene.
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It has the ability to cause infection in the host.
For transformation, micro-particles coated with DNA to be bombarded with gene gun are made up of :
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Silver or Platinum
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Gold or Tungsten
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Silicon or Platinum
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Platinum or Zinc
Two microbes found to be very useful in genetic engineering are
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Escherichia coli and Agrobacterium tumefaciens
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Vibrio cholerae and a tailed bacteriophage
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Diplococcus sp. and Pseudomonas sp.
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Crown gall bacterium and Caenorhabditis elegans
Gel electrophoresis is used for
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Construction of recombinant DNA by joining with cloning vectors
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Isolation of DNA molecules
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Separation of DNA fragments according to their size
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Cutting of DNA into fragments
Which one of the following techniques made it possible to genetically engineer living organisms?
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X-ray diffraction
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recombinant DNA technique
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heavier isotope labelling
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hybridization
Which one of the following is a case of wrong matching?
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Vector DNA - Site for t-RNA synthesis
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Somatic hybridisation - Fusion of two diverse cells
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Callus - Unorganised mass of cell produced in tissue culture
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Micropropagation - In vitro production of plants in large numbers
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