Anatomy Of Flowering Plants Question 63
Question: The concept envisaging three distinct zones of cells of new tissue builders at the stem and root apices is known as:
Options:
A) Tunica corpus theory
B) Dermatogen
C) Meristem theory
D) Histogen theory
Show Answer
Answer:
Correct Answer: D
Solution:
Histogen theory is proposed by Hanstein. According to histogen theory, there are three zones as dermatogen, periblem and pleurome in shoot and root apical meristem.
These three zones are considered as histogens or tissue builders.
Each zone performs distinct functions and possesses group of initial cells.
Thus, the correct answer is option D.
BETA
