CBSE Class 12 Biology Biotechnology: Principles and Processes Quiz 1

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CBSE › Class 12 › Biology › Biotechnology: Principles and Processes

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1. Transgenic plants are develop by:

A Introducing of foreign fenes B Clone and genetically modified genes C Genetic engineering D Purified genes

2. Two microbes found to be very useful in genetic, engineering are:

A Escherichiya Coli and Agrobacterium tumefaciens B Virbio chloerae and tailed bacteriophage C Diplococcus sp and pseudomonas sp. D None of these

3. Who discovered Restricted endonucleas enzymes?

A Smith and Nathane B Baiger C Waxman D Fleming

4. DNA obtained for DNA finger printing:

A W.B.C. (b) Hair root cells

5. Two microbes found tb be very useful in Genetic Engineering are:

A Excherichia coli and Agrobacterium tumefaciens B Vibrio cholarae and a tailed bacteriophage C Diplococcus sp. and Pseudomonas sp. (d) Crown gall bacterium and Caenorhabdities elegans

6. Plasmid is a:

A Fungus B Plasmid C Part of Plasma membrane D Extra chromosomal DNA in bacterial cell

7. Restriction endonuclease cuts:

A One stand of DNA at specific site B Both strands of DNA C Both strands of DNA at any site D Single strand of RNA

8. Restrictipn endonucleases are most widely used in recombinant DNA technology. They are obtained from :

A Plasmids B AH prokaryotic cells C Bacteriophages D Bacterial cells

9. Golden rice is a promising transgenic crop. When released for cultivation, it will help in :

A High lysin content B Pest resistance C High protien content D High vitamin A content

10. Triticale, first man made cereal crop, has been obtained by crossing wheat with:

A Rye B Pearl millet C Sugarcane D Barley

Practice more on Biotechnology: Principles and Processes

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