The ratio of cytokinins to auxin controls cell differentiation in a callus, if:

I. Auxin levels increase shoot buds develop from the callus

II. Cytokinins level increase, roots form

1. Only I is correct

2. Only II is correct

3. Both I and II are correct

4. Both I and II are incorrect

Subtopic:  Development | Growth Hormones & Auxin | Cytokinin |
Please attempt this question first.
Hints

Consider the given two statements:

I: Generally, phenotypic plasticity is more important for immobile organisms (e.g. plants) than mobile organisms (e.g. most animals).
II: Plants follow different pathways in response to environment or phases of life to form different kinds of structures.

1. Both I and II are correct and II explains I

2. Both I and II are correct but II does not explain I

3. I is correct but II is incorrect

4. Both I and II are incorrect

Subtopic:  Development |
Please attempt this question first.
Hints