Read the following statements and choose the following option: 1. Zeatin is a form of naturally occuring cytokinin 2. Cytokinins have specific effects on karyokinesis 3. Root apices contain cytokinins 4. It inhibits production new leaves, chloroplasts in leaves, lateral shoot growth and adventitious shoot formation. 5. Cytokinins help promote the apical dominance.

Step-by-step solution

Search for natural substances with cytokinin-like activities led to the isolation of zeatin from corn-kernels and coconut milk. Natural cytokinins are synthesised in regions where rapid cell division occurs, for example, root apices, developing shoot buds, young fruits etc. It helps to produce new leaves, chloroplasts in leaves, lateral shoot growth and adventitious shoot formation. Cytokinins help overcome the apical dominance.