The US Department of Agriculture biopirated the product of neem named ____ for its uses as pesticide and for various medical values.

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The US Department of Agriculture biopirated the product of neem named azadirachtin for its uses as pesticide and for various medical values. In 1994, European Patent Office (EPO) granted a patent (EPO patent No.436257) to the US Corporation W.R. Grace Company and US Department of Agriculture for a method of controlling fungi on plants with the aid of hydrophobic extracted Neem oil. Options A, B and D are incorrect.

ELISA is used to detect viruses where the key reagent is

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ELISA test is a technique which can detect any amount of an antibody or antigen with the help of an enzyme. The commonly used enzymes are alkaline phosphatase and peroxidase.

Which one of the following is not an antibiotic?

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Citric acid is an organic acid present naturally in citrus fruits.

Transgenic animal technology is a better alternative to bacterial system in producing __________ protein.

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Transgenic animal technology is a better alternative to bacterial system in producing glycosylated protein. Glycosylated protein like monoclonal antibodies require high quality level of post-translational modifications or folding processes of the protein molecule. This is possible in mammalian animals and not in bacteria. Options A, B and C are incorrect.

Crown gall disease in plants is caused by

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Crown gall disease in plants is caused by Ti-plasmid.

Transgenic plants are the ones

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Transgenic plants are the ones whose DNA is modified using genetic engineering methods.Transgenic plants have artificially inserted gene or genes ( for desired trait) into the cell.

First transgenic plant

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The first transgenic plant came in 1982, an antibiotic -resistant tobacco plant.

The Indian Patents Bill Third Amendment Act was in ____.

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The Indian Patents Bill Third Amendment Act was in 2005. Options A, B and D are incorrect.

Flavr Savr is the transgenic variety of

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Without hint.

The organ that is mainly affected by the deficiency of alpha 1-antitrypsin is the ____.

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The organ that is mainly affected by the deficiency of alpha 1-antitrypsin is the lung. Alpha-1 antitrypsin deficiency damages the alveoli in the lungs.The patients may feel short of breath and develop lung diseases, such as emphysema, asthma, or chronic bronchitis. It may also affect the liver. Options A, B and D are incorrect.

The insertion of synthetic DNA containing a normal gene into the affected cells is known as ____ therapy.

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The insertion of synthetic DNA containing a normal gene into the affected cells is known as gene therapy. Options A, B and D are incorrect.

The processing of long double stranded (ds) RNA to short interfering siRNAs in the process of RNA interference involves the enzyme known as ____.

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The processing of long ds RNA to short interfering siRNAs in the process of RNA interference involves the enzyme known as dicer. Dicer is ribonuclease (RNase) III. Dicer contains two single active sites, each of which cleaves one strand of the dsRNA backbone. Options A, B and C are incorrect.

Maximum utilization of the techniques of biotechnology has been made in the field of

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Maximum utilization of the techniques of biotechnology has been made in the field of medicines.

Recombinant DNA technology prepared vaccine is called

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Recombinant DNA technology prepared vaccine is called second generation vaccine.

Bacillus thuringiensis (Bt) strains have been used for designing novel

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Bt cotton, a transgenic crop variety has been introduced in India. The Bt cotton variety contains a foreign gene obtained from Bacillus thuringiensis. This bacterial gene protects cotton from tha ball worm, a major pest of cotton.

The transgenic cow that expresses human protein in the milk is named ____.

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The transgenic cow that expresses human protein in the milk is named Rosie. Options A, B and D are incorrect and are transgenic sheep.

How is the genetically modified cow Rosie different from the normal cow?

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Rosie produces milk rich in alpha lactalbumin. Rosie produces milk with 2.4 gms. of human lactalbumin per litre that is important for infants. The high content of cysteine in alpha-lactalbumin boosts the immune system and promotes wound healing. The high level of tryptophan, which may help improve mood, sleep and cognitive performance. Options B, C and D are incorrect.

The insecticidal crystal proteins are inactive protoxin in certain bacteria like ____.

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The insecticidal crystal proteins are inactive protoxin in certain bacteria Bacillus thuringiensis. Certain members of the gram positive bacteria belonging to the genus Bacillus produce proteins that are insecticidal. The best characterised are those of Bacillus thuringiensis (BT), where the insecticidal proteins are found as crystalline bodies. Options A, C and D are incorrect.

Transgenic birds express the recombinant protein in their ____.

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Transgenic birds express the recombinant protein in their eggs. The foreign protein is expressed in the white of their eggs. Options A, C and D are incorrect.

In industries microorganisms are used for the manufacture of

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In industries microorganisms are used for the manufacturing of gluconic acid.

The Indian government became a signatory to TRIPS after it joined the World Trade Organisation in ____.

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The Indian government became a signatory to TRIPS after it joined the World Trade Organisation in 1995. Options B, C and D are incorrect.

The proinsulin molecule has ____ amino acids.

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The proinsulin molecule has 81 amino acids. The A chain has 20, the C peptide has 31 and the B chain has 30 aminoacids. Options B, C and D are incorrect.

Interferons are

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Interferons are active proteins (antiviral proteins) that are effective against most viruses.

Which of these can preserve food stuffs?

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The protein encoded by the gene "cry IAb" controls ____.

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The protein encoded by the gene "cry IAb" controls corn borer. Options A, B and C are incorrect. Option A - Cotton bollworms are controlled by the protein encoded by cry IAc and cry IIAb.

The illegal usurpation and patenting of naturally occurring indigenous biological materials or knowledge is known as ____.

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The illegal usurpation and patenting of naturally occurring indigenous biological materials or knowledge is known as biopiracy. Options A, B and C are incorrect.

The appetite-suppressing element is from a cactus ____ and is biopirated for its potential cure for obesity.

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The appetite-suppressing element is from a cactus Hoodia and is biopirated for its potential cure for obesity. Hoodia's appetite-suppressing element, P57 is patented by South African Council of Scientific & Industrial Research as a potential slimming drug and cure for obesity. Options A, B and D are incorrect.

Antibiotics belong to the category of

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Antibiotics are medicines that inhibits the growth of microrganisms ( bacteria,fungi).

The rice variety known as golden rice is produced through genetic engineering to biosynthesize ____ in the edible parts of rice.

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The rice variety known as golden rice is produced through genetic engineering to biosynthesize beta carotene in the edible parts of rice. Beta carotene is a precursor of vitamin A that is needed for the developments of rods in the eye. Golden rice may prevent the incidence of night blindness. Options A, B and C are incorrect.

Transgenic mice are used to test the ____ of vaccines.

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Transgenic mice are used to test the safety of vaccines. Options A, C and D are incorrect.

Class 12th Biology - 12 Biotechnology and its Application MCQs
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Class 12th Biology - 12 Biotechnology and its Application MCQs