Question

Growth of roots in onion bulbs Defination

Answer 1

you can regrow the roots in water grow it to seed as a houseplants smaller green onion are simply onion harvested before the bulbs mature

Answer 2

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When the root tips are cut, the apical meristem responsible for the increase in length gets removed. The growth of plants occurs only in certain specific regions. In the above picture, the roots of onion bulb grow fast at the tip due to presence of dividing cells of meristematic tissues located only at these points.