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Question
Biology
Who proposed the histogen theory?
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Q. Who proposed the histogen theory?
Rajasthan PMT
Rajasthan PMT 1996
A
Nagelli
B
Schmidt
C
Strassburger
D
Hanstein
Solution:
According to Hansteins histogen theory (1870) three zones of tissue present in stem and root (a) dermatogen (b) pcriblem (c) plerome.