Q. No.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)
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.
2. Statements (b) and (c)
3. Statements (c) and (d)
4. Statements (a) and (c)
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Which of the following Bt crops is being grown in India by the farmers?
1. Maize
2. Cotton
3. Brinjal
4. Soybean
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The two polypeptides of human insulin are linked together by
1. Hydrogen bonds.
2. Phosphodiester bond.
3. Covalent bond.
4. Disulphide bridges.
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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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Use of bioresources by multinational companies and organisations without authorisation from the concerned country and its people is called.
1. Biodegradation
2. Biopiracy
3. Bio-infringement
4. Bio-exploitation
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A ‘new’ variety of rice was patented by a foreign company, through such varieties have been present in India for a long time. This is related to
1. Lerma Rojo
2. Sharbati Sonora
3. Co-667
4. Basmati
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Which one of the following is now being commercially produced by biotechnological procedures?
1. Morphine
2. Quinine
3. Insulin
4. Nicotine
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DNA or RNA segments tagged with a radioactive molecule is called
1. Vector.
2. Probe.
3. Clone.
4. Plasmid.
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The bacterium Bacillus thuringiensis is widely used in contemporary biology as
1. Source of industrial enzyme
2. Indicator of water pollution.
3. Insecticide.
4. Agent for production of dairy products.
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What is antisense technology?
1. RNA polymerase producing DNA.
2. A cell displaying a foreign antigen used for synthesis of antigens.
3. Production of somaclonal variants in tissue cultures.
4. When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene.
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