Tag: biotechnology and its application
Questions Related to biotechnology and its application
Which of the following is not component of downstream processing ____________.
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Expression
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Separation
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Purification
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Presentation
Which is not one of the major categories of biotechnology products ?
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Hormones and similar proteins
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Toxins for use in pest control
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DNA probes
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Vaccines
Biotechnology involves the exploitation of biological processes for industrial and other purposes, especially the genetic manipulation of microorganisms for the production of antibiotics, hormones, vaccines etc. It also involves various other methods involving production, amplification of DNA segments like DNA probe.
Which of the following is not a component of downstreaming processing?
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Separation
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Purification
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Preservation
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Expression
Which among these is produced by distillation of fermented broth?
(i) Whisky (ii) Wine (iii) Beer (iv) Rum (v) Brandy
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(ii) and (iii) alone
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(i) and (ii) alone
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(iii) and (v) alone
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(i), (iv) and (v) alone
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(iii) and (iv) alone
Both wine and beer are essentially the products of the fermentation process - the fermented broth serves as the basis of the product. Other alcoholic beverages (whisky, rum, brandy) fall under the category of distilled spirits. Distillation is the process by which the alcohol is removed from the fermented broth (or wort) by heating the wort until the alcohol vaporizes, after which it is condensed. When almost pure alcohol is distilled from fermentation, the product is called as grain neutral spirits (GNS).
Which of the following recent techniques is used for separating fragments of DNA?
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Eastern blotting
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Northern blotting
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Southern blotting
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Western blotting
Southern blotting involves DNA digestion, Gel electrophoresis, Blotting, Probe labeling, Hybridization and washing, and detection.
Which one of the following bacteria is used for production of transgenic plants?
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Escherichia coli
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Bacillus subtilis
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Staphylococcus aureus
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Agrobacterium tumefaciens
Agrobacterium tumefacians is used for the production of transgenic plants as it carries a plasmid capable of inducing tumors in plants. These tumors can be artificially induced by transferring the gene into a plant which otherwise is not prone to infection, where the plasmid is genetically engineered for inserting a particular gene, for example, the transfer of delta endotoxin and npt II gene, from Bacillus thuringiensis, in commercially useful plants like cotton to protect it from its predator, the gall worm
The process of reduction of pollution by use of organisms is called as
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Biotechnology
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Bioremediation
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Bioneutralizer
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Biopurifier
Bio-remediation is a waste management technique that involves the use of organisms to remove or neutralize pollutants from a contaminated site. Bio-remediation is a treatment that uses naturally occurring organisms to break down hazardous substances into less toxic or non toxic substances.
Transgenic plants are developed by
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Introducing foreign gene
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Introducing gene mutations
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Deleting certain chromosome
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Inhibiting spindle formation
The genetically modified crops are known as
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Transgenic species
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Transgenic plants
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Transgenic wildlife
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None of the above
A transgenic crop plant contains a gene or genes which have been artificially inserted instead of the plant acquiring them through pollination. The inserted gene sequence (known as the transgene) may come from another unrelated plant, or from a completely different species: transgenic Bt corn, for example, which produces its own insecticide, contains a gene from a bacterium.
Use of living organisms for removing pollutants from the biosphere is called.
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Green movements
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Phytoremediation
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Bioremediation
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Remediation
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