In many plants, nitrate is assimilated in the root as well as in the shoot according to their native place. Some of the given statements about nitrate assimilation;

a) If plants native to temperate region assimilate NO3^- at root

b) If plants native to temperate region assimilate NO3^- at shoot

c) Plants native to tropical or subtropical region assimilate NO3^- at root

d) Plants native to tropical or subtropical region assimilate NO3^- at shoot

Which of the following combination from above statements is correct?

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#Question id: 37993

#Plant Biotechnology

Which part of the explant is specifically treated by cutting the distal tip before implantation into the nutrient medium? 

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#Question id: 37994

#Plant Biotechnology

In the "Cereal crown treatment" method, which solvent is used alongside water to dissolve colchicine and facilitate its uptake? 

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#Question id: 37995

#Plant Biotechnology

List I (Method)	List II (Detail)
A. Colchicine-lanolin paste	1. Anthers plated on supplemented medium for 1 week
B. Repeated axillary bud treatment	2. Main axis decapitated to stimulate axillary buds
C. Anther Culture	3. Cotton plugs applied for 14 days (e.g., Potato)

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#Question id: 37996

#Plant Biotechnology

Which of the following conditions is crucial for "Post-treatment care" after applying colchicine to plants? 

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#Question id: 37997

#Plant Biotechnology

For the "Plantlet treatment" method, what is the standard concentration and duration of colchicine exposure described? 

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#Question id: 37998

#Plant Biotechnology

Statement I: Unpollinated ovaries are generally preferred over pollinated ones for the production of haploids via gynogenesis.

Statement II: In maize, diploidization issues during anther culture are often addressed by treating the crowns of 3–4 tiller stage plants with DMSO.

Choose the correct answer: