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Class 12 Biology
Biotechnology: Principles And Processes
Quiz 1
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Transgenic plants are develop by:
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Introducing of foreign fenes
0%
Clone and genetically modified genes
0%
Genetic engineering
0%
Purified genes
Explanation
Introducing of foreign fenes
Two microbes found to be very useful in genetic, engineering are:
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Escherichiya Coli and Agrobacterium tumefaciens
0%
Virbio chloerae and tailed bacteriophage
0%
Diplococcus sp and pseudomonas sp.
0%
None of these
Explanation
Escherichiya Coli and Agrobacterium tumefaciens
Who discovered Restricted endonucleas enzymes?
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Smith and Nathane
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Baiger
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Waxman
0%
Fleming
Explanation
Smith and Nathane
DNA obtained for DNA finger printing:
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W.B.C. (b) Hair root cells
Explanation
W.B.C.
Two microbes found tb be very useful in Genetic Engineering are:
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Excherichia coli and Agrobacterium tumefaciens
0%
Vibrio cholarae and a tailed bacteriophage
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Diplococcus sp. and Pseudomonas sp. (d) Crown gall bacterium and Caenorhabdities elegans
Explanation
Excherichia coli and Agrobacterium tumefaciens
Plasmid is a:
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Fungus
0%
Plasmid
0%
Part of Plasma membrane
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Extra chromosomal DNA in bacterial cell
Explanation
Extra chromosomal DNA in bacterial cell
Restriction endonuclease cuts:
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One stand of DNA at specific site
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Both strands of DNA
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Both strands of DNA at any site
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Single strand of RNA
Explanation
Both strands of DNA
Restrictipn endonucleases are most widely used in recombinant DNA technology. They are obtained from :
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Plasmids
0%
AH prokaryotic cells
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Bacteriophages
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Bacterial cells
Explanation
Bacterial cells
Golden rice is a promising transgenic crop. When released for cultivation, it will help in :
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High lysin content
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Pest resistance
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High protien content
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High vitamin A content
Explanation
High vitamin A content
Triticale, first man made cereal crop, has been obtained by crossing wheat with:
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Rye
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Pearl millet
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Sugarcane
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Barley
Explanation
Barley
Viral genome incroporatcd into host DNA is called:
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Prophase
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Protophage
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Bacteriophage
0%
None of these
Explanation
Bacteriophage
DNA element with ability to change its position is called:
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Cistron
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Transposon
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Intron
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Ricon
Explanation
Intron
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