Q. Periblem is gives rise to:

 1926  235 Jharkhand CECEJharkhand CECE 2002 Report Error

Solution:

Hanstein recognised three embryonic zones in shoot apex and four in root apex and called them as histogen. The histogens are:
[a] Dermatogen Epidermis
[b] Periblem Cortex
[c] Plerome Stele and pith
[d] Calyptrogen Root cap (only in root apex)