Cytokinin Biosynthesis in Plants

Cytokinin biosynthesis is irreversible.

Cytokinin biosynthesis is not affected by CK or ABA.

Mutations in cytokinin biosynthesis pathways result in loss of overall cytokinin function. (correct)

Cytokinin biosynthesis is regulated by nitrogen.

Cytokinins inhibit branching in the shoot.

Cytokinins have a positive impact on cell proliferation in the shoot at low concentrations. (correct)

Cytokinins maintain stem cell activity at the root apical meristem.

Cytokinins promote lateral organ initiation at the shoot apical meristem.

Cytokinins maintain stem cell activity at the root apex.

Cytokinins and auxins both promote cell differentiation at the root apex.

Cytokinins and auxins have no impact on each other's function at the root apex.

Auxins are transported downwards from the shoot meristem to the root apex. (correct)

<p>Cytokinin (B)</p> Signup and view all the answers

<p>Strigolactones (B)</p> Signup and view all the answers

<p>GA4 (C)</p> Signup and view all the answers

<p>They block the formation of GA (A)</p> Signup and view all the answers