First slide

Plant Growth Regulators

Question

Discovery of which of the following hormones is an example of serendipity?
a- Auxins
b- Gibberellins
c- Cytokinins
d- Ethylene
e- Abscisic acid

Moderate

A

a and b only
B

a, b and c only
C

a, b and e only
D

a, b, c, d and e

Solution

Interestingly, the discovery of each of the five major groups of PGRs have been accidental. All this started with the observation of Charles Darwin and his son Francis Darwin when they observed that the coleoptiles of canary grass responded to unilateral illumination by growing towards the light source (phototropism).

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App