Question

Plant medium used widely in preparation of culture medium is got from

• A. Cycas revoluta.
• B. Cocos nucifera.
• C. Pinus roxburghii.
• D. Borassus flabellifera.

Answer 1

The correct option is B Cocos nucifera.

Plant medium used widely in preparation of culture medium is obtained from the Cocos nucifera. It provides the growth hormone known as cytokinin. The first natural cytokinin known as zeatin was obtained from the coconut plant.

Cytokinins are the group of plant hormones which promotes cell division and differentiation in root and stem of the plant. It is involved in inducing morphogenesis. Auxin and cytokinin are used in equal quantity in the growth media of callus it promotes shoot and root formation and finally leads to organogenesis.

So, the correct answer is option B.