Stable transformation of plants is reliably obtained by
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Biotechnology Engineering · all questionsPlant Biotechnology
Plant Biotechnology
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Some of the cytokinins used in plant tissue culture media are given below:
P. BAP
Q. Zeatin
R. Kinetin
S. 2iP
Which of these are synthetic analogs?
P. BAP
Q. Zeatin
R. Kinetin
S. 2iP
Which of these are synthetic analogs?
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Somatic embryogenesis is a procedure in plant tissue culture methodology described best as
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Cells of meristemoid are best described as
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Determine the correctness or otherwise of the following Assertion [A] and the Reason [R].
Assertion [A]: A genetically engineered rice that produces beta-carotene in the rice grain is called Golden rice.
Reason [R]: Enabling biosynthesis of provitamin A in the rice endosperm gives a characteristic yellow/orange color.
Assertion [A]: A genetically engineered rice that produces beta-carotene in the rice grain is called Golden rice.
Reason [R]: Enabling biosynthesis of provitamin A in the rice endosperm gives a characteristic yellow/orange color.
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Match the herbicides in Group I with the target enzymes in Group II.
| Group I | Group II |
| P. Glyphosate | 1. Nitrilase |
| Q. Bromoxynil | 2. Acetolactatesynthetase |
| R. Sulphonylureas | 3. Dehalogenase |
| S. Dalapon | 4. 5-Enolpyruvyl shikimate 3-phosphate synthase |
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Plant secondary metabolites production in suspension culture is mainly targeted for
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To produce plants that are homozygous for all traits, the best choice is
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Virus resistant transgenic plants can be developed by the expression of
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Expression of antisense RNA of ACC synthase in transgenic tomato plants inhibited the synthesis of ethylene resulting in
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Majority of the cereals are highly recalcitrant to Agrobacterium mediated transformation, and so direct transformation methods have been developed to transform such plants. Which of the following direct transformation methods is applicable to intact plant tissues?
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Vincristine and vinblastine, two commercially important secondary metabolites from Catharanthus roseus, are examples of
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Agrobacterium based transformation of protoplasts obtained from dicots is based on the fact that
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Match the secondary metabolites (Group I) with the corresponding plant species (Group II).
| Group I | Group II |
| P. Morphine | 1. Datura stramonium |
| Q. Pyrethrins | 2. Catharanthus roseus |
| R. Scopolamine | 3. Papaver somniferum |
| S. Vincristine | 4. Tagetes erecta |
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Hydrated synthetic seeds which are produced by ion exchange reaction involve mixing the somatic embryos in a solution of
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Determine the correctness or otherwise of the following Assertion (A) and the Reason (R).
Assertion: Somatic embryogenesis in plants is a twostep process comprising of embryo initiation followed by embryo production.
Reason: Embryo initiation is independent of the presence of 2, 4-dichlorophenoxyacetic acid, whereas embryo production requires a high concentration of 2, 4-dichlorophenoxyacetic acid.
Assertion: Somatic embryogenesis in plants is a twostep process comprising of embryo initiation followed by embryo production.
Reason: Embryo initiation is independent of the presence of 2, 4-dichlorophenoxyacetic acid, whereas embryo production requires a high concentration of 2, 4-dichlorophenoxyacetic acid.
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Which of the following statements are true about glyphosate tolerant transgenic plants?
P. Transgenic plants detoxify glyphosate.
Q. Transgenic plants produce an altered enzyme that is not affected by glyphosate.
R. Transgenic plants sequester glyphosate in vacuoles.
S. Transgenic plants overcome the inhibition of aromatic amino acid biosynthesis.
P. Transgenic plants detoxify glyphosate.
Q. Transgenic plants produce an altered enzyme that is not affected by glyphosate.
R. Transgenic plants sequester glyphosate in vacuoles.
S. Transgenic plants overcome the inhibition of aromatic amino acid biosynthesis.
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