Q. No.Diseases amenable to treatment by gene therapy:
1. Must be relatively mild.
2. Must be caused by a defect in cells that are clinically accessible.
3. Must have other types of treatments available in case gene therapy fails.
4. Must lower the humoral and cell mediated immune responses
Main objective of production / use of herbicide resistant GM crops is to
1. Encourage eco-friendly herbicides
2. Reduce herbicide accumulation in food articles for health safety
3. Eliminate weeds from the fields without the use of manual labour
4. Eliminate weeds from the fields without the use of herbicides
Which of the following are also called as “magical bullets”?
1. restriction enzymes
2. monoclonal antibodies
3. DNA ligases
4. plasmids
The crops engineered for glyphosate are resistant/tolerant to:
1. Bacteria
2. Insects
3. Herbicides
4. Fungi
Some of the characteristics of BT cotton are
1. Medium yield, long fibre and resistance to beetle pests
2. High yield and production of toxic protein crystals which kill dipterans pests
3. High yield and resistance to bollworms
4. Long fibre and resistance to aphids
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The genetically-modified (GM) brinjal in India has been developed for
1. Enhancing shelf life
2. Enhancing mineral content
3. Drought-resistance
4. Insect-resistance
Which of the following explains why production of transgenic plants is easier than production of transgenic animals?
1. Plant cells can grow in cell culture.
2. Plant cells have a lower number of potentially lethal genes.
3. Plant cells are totipotent.
4. Production of mutant plants poses less ethical dilemmas than production of mutant animals.
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Read the following four statements (a-d) for certain mistakes in two of them.
a. The first transgenic buffalo, Roise produced milk which wes human alpha-lactalbumin enriched.
b. Restriction enzymes are used in isolation of DNA from other macro molecules.
c. Downstream processing is one of the steps of recombinant DNA technology.
d. Disarmed pathogen vectors are also used in transfer of recombinant DNA into the host.
Which are the two statements having mistakes?
1. Statements (a) and (b)
2. Statements (b) and (c)
3. Statements (c) and (d)
4. Statements (a) and (c)
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Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes?
1. Λ phage
2. Ti plasmid
3. Retrovirus
4. pBR 322
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Genetically engineered microorganism used successfully in bioremediation of oil spills is
1. Trichoderma
2. Xanthomonas
3. Bacillus
4. Pseudomonas putida
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