NEET Biology question

Select the correct statement regarding auxins.

(A)Auxins promote root growth only at extremely low concentrations and they inhibit root growth at higher concentrations
(B)Concentration of auxins which is inhibitory to root growth causes initiation of adventitious roots from the nodes or basal regions of stem
(C)Auxins such as NAA and IBA are used to induce rooting in stem cuttings
(D)All of theseCorrect

Answer: (D)

Solution

All three statements are correct and well-established: auxin has a biphasic dose-response, promoting root growth at very low concentrations but inhibiting it at higher concentrations

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-114435