What would be expected to happen if,

What would be expected to happen if,
(i) 3 is applied to rice seedlings.
(ii) Dividing cells stop differentiating.
(iii) A rotten fruit gets mixed with unripe fruits.
(iv) You forget to add cytokinin to the culture medium.

(i) Rice seedlings will grow extremely tall.
(ii) An undifferentiated mass of cells is formed.
(iii) The unripe fruits will ripe quickly.
(iv) The callus will not develop shoot buds.