BIOMOLECULES AND ENZYMES

Detailed explanation-1: -These results suggest that auxin and cytokinin exert opposite effects on amyloplast development by regulating the expression of the genes required for starch biosynthesis.

Detailed explanation-2: -In the root meristem, auxin induces the meristematic cell division, whereas cytokinin promotes the cell to switch from the meristematic to differentiated state through inhibiting auxin signaling.

Detailed explanation-3: -Explain how auxins act in opposition to cytokinins? Auxins stimulate the initiation of new roots and inhibit the growth of new shoot tips. Cytokinins stimulate the initiation of new shoots and inhibit the growth of new roots.

Detailed explanation-4: -We found that auxin at low concentrations limits the action of cytokinin. An increase in cytokinin level counteracts this inhibitory effect and leads to an inhibition of auxin signaling. At higher concentrations of both hormones, these antagonistic interactions between cytokinin and auxin are absent.