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Evaluation · Q10

Q.Solidifying agent used in plant tissue culture is

a) Nicotinic acid
b) Cobaltous chloride
c) EDTA
d) Agar
Tamil Nadu DgeTextbookSubjectiveImportance★★★★★
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Step 1. The chapter states that a gelling agent such as agar is added to solidify a liquid medium into a solid or semisolid form.

Step 2. Nicotinic acid (a) is a vitamin in MS medium, not a gelling agent.

Step 3. Cobaltous chloride (b) is a minor-nutrient salt in MS medium, not a gelling agent.

Step 4. EDTA (c) is part of the iron stock (as Na-EDTA) used to keep iron available to the plant tissue, not a gelling agent. …

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