Question

Jackson (1953) divided meristems into three types. Which one is not one of those ?

• A. Ground meristem
• B. Procambium
• C. Rib meristem
• D. Protoderm

Hint:

The three primary meristems give rise to epidermis, vascular tissue and ground tissue respectively.

Answer 1

The Correct Option is C

Step 1: Jackson (1953) described the three primary meristems that differentiate just behind the apical meristem as protoderm (gives rise to epidermis), procambium (gives rise to vascular tissue) and ground meristem (gives rise to cortex and pith).

Step 2: Rib meristem is a different concept altogether, describing files of cells dividing in one plane to form longitudinal rows, as seen in pith formation, and is not one of Jackson's three primary meristem categories.

Step 3: So the correct answer is Rib meristem.