To obtain virus free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?

A Apical meristem only
B Palisade parenchyma
C Both apical and axillary meristems
D Epidermis only

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Correct Answer

(C) Both apical and axillary meristems

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Detailed explanation

(c) : Meristem is a localized group ofcells, which are actively dividing and undifferentiated but ultimately giving rise to permanent tissue. Although the plant is infected with a virus, yet the meristem is free of virus. Therefore, meristem can be removed and grown in vitro to obtain virus free plants. Cultivation of axillary or apical shoot meristems is called meristem culture. The apical or axillary meristems are generally free from virus.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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To obtain virus ­ free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?

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To obtain virus free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?