Tag: transgenic organisms
Questions Related to transgenic organisms
Transgenic plants have been shown to express the genes of
I) Insulin
II) Interferons
III) Human growth hormones
IV) Antibodies
V) Antibiotics.
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I, II, III, IV, V
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Except III, IV
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Except IV
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I, II, III only
RNA i us used to control pests on which plant?
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Tobacco
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Mango
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Potato
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Poppy
An improved variety of transgenic basmati rice?
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Does not require chemical fertilizers and growth hormones
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Gives high yield and is rich in vitamin A
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Is completely resistant to all insect pests and disease of paddy
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Gives high yield but has no characteristic aroma
Transgenic plants receive genes from which of the following organisms?
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Insects
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Bacteria
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Virus
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All of the above
There are several methods for introducing genes into plants, including:
- Infecting plant cells with plasmids as vectors carrying the desired gene.
- Shooting microscopic pellets containing the gene directly into the cell.
- can be transformed in the laboratory with the desired gene;
- grown into mature plants with flowers.
In this respect, it is easier to produce transgenic plants than transgenic animals.
Progress is being made on several fronts to introduce new traits into plants using recombinant DNA technology.
The genetic manipulation of plants has been going on since the dawn of agriculture, but until recently this has required the slow and tedious process of cross-breeding varieties. Genetic engineering promises to speed the process and broaden the scope of what can be done.
Transgenic plants of tomato having resistance to hornworm larvae are those which have
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Foreign resistant gene
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Mutated resistant gene
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Synthetic resistant gene
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Superimposed resistant gene
Transgenic tomato plants expressing a truncated insect control protein gene from Bacillus thuringiensis were protected from attack by tobacco hornworm, tobacco budworm and tomato fruit worm larvae. Filed tests involving transgenic tomato lines challenged with tobacco hornworm, tomato fruit worm and tomato pin worm were conducted for two years. These transgenic plants suffered only minor feeding damage from tobacco hornworm, while the untransformed controls were completely defoliated. The foreign gene present had made this possible.
A tumour inducing plasmid widely used in the production of transgenic plant is that of
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Escherichia coli
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Bacillus thuringiensis
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Staphylococcus aureus
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Agrobacterium tumefaciens
A tumor (crown gall) inducing plasmid widely used in the production of transgenic plants is Agrobacterium tumefaciens. Bacillus thuringiensis is used for the production of disease-resistant plants. Other 2 are disease-causing bacteria.
Transgenic plant of tobacco was mainly used to produce
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Antibody
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Enhance the tolerance to water stress
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Enhance flowering
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Both A and B
The tobacco plant was genetically modified by introducing a gene to produce antibodies. The plant was introduced with the gene for producing antibodies against the rabies virus which are similar to the antibodies produced in the humans. The antibodies from the plant can be purified and used as injections or vaccines. These vaccines help in providing immunity against the rabies virus.
Glycerol-1-phosphate acyltransferase enzyme was extracted by
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Glycine max
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Arabidopsis
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Beta vulgaris
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Secale cereale
Which of the following attributes can be improved in ornamental plants?
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Regulation of flowering
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Weed control
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Promotion of vegetative growth
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All of the above
Salt tolerant transgenic has been developed for
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Brinjal
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Grape
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Potato
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Tomato