Q. The twining of tendrils around a support is a good example of

 2036  243 AIPMTAIPMT 1995Plant Growth and Development Report Error

Solution:

Thigmotropism involves nastic movements resulting from touch. It occurs in tendrils which coil around support and help the plant in climbing. Phototropism is a paratonic movement in response to unidirectional light stimulus. Chemotropism is a directional paratonic movement that occurs in response to a chemical stimulus.