The histogen layer present at the apex of the shoot tip is called

Options

A. Dermatogen
B. Procambium
C. Calyptrogen
D. Plerome

Answer

A

Explanation

Acc. To histogen theory given by Hanstein. The three principal tissue of the root, vascular cylinder, cortex and epidermis originate from three groups of initial cells or histogens in the apical meristem pleurme, periblem and dermatogen a fourth histogen the calyptrogen produces the root cap.