Multiple choice

Tunica corpus concept of shoot apex was first given by:

  1. Hanstein

  2. Schmidt

  3. Hofmeister

  4. Nageli
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B Correct answer
Explanation

Schmidt (1924) proposed the tunica-corpus theory of the shoot apex organization. The tunica is the outer layer(s) of cells that divide anticlinally, while the corpus is the inner mass that divides in various planes. This theory explains how the shoot apical meristem maintains its structure while producing new organs.

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