NEET2026BiologyChapterActual
Read the following anatomical features: i) Presence of unicellular root hairs ii) Endodermis with Casparian strips iii) Large and well-developed pith iv) Two to four xylem patches v) Initiation of lateral roots from the pericycle vi) Polyarch condition of vascular bundles vii) Endarch arrangement of primary xylem viii) Parenchymatous conjunctive tissue Which of the above features are characteristic of a typical dicot
Options
- Ai, ii, iv, v, viii
- Bi, ii, iii, vi, viii
- Ci, iv, v, vii, viii
- Dii, iii, v, vi, vii
Correct answer
A. i, ii, iv, v, viii
Step-by-step solution
The anatomical features of a typical dicotyledonous root are as follows: i) Presence of unicellular root hairs: The outermost layer is epiblema, which bears unicellular root hairs. ii) Endodermis with Casparian strips: The endodermis consists of barrel-shaped cells with water-impermeable, waxy suberin deposition in the form of Casparian strips. iii) Large and well-developed pith: This is a feature of monocot roots. In dicot roots, the pith is small or inconspicuous. iv) Two to four xylem patches: Dicot roots typica