NEET 2016 Phase 2 · BiologyAndroeciumPrevious Year Question

The term 'polyadelphous' is related to (NEET 2016 (Phase II))

Answer: (B) Androecium. Adelphy refers to the cohesion (union) of stamens, i.e.

  1. A.Gynoecium
  2. B.Androecium✓
  3. C.Corolla
  4. D.Calyx

Correct Answer

(B) Androecium

Solution & Explanation

Adelphy refers to the cohesion (union) of stamens, i.e. it is a feature of the androecium: stamens united in one bundle are monadelphous (china rose), in two bundles diadelphous (pea), and in more than two bundles polyadelphous (citrus). It has nothing to do with gynoecium, corolla or calyx, so 'polyadelphous' relates to the androecium. NCERT Reference: Ch 5, p.64, lines 32-35 — "The stamens may be united into one bunch or one bundle (monoadelphous) as in china rose, or two bundles (diadelphous) as in pea, or into more than two bundles (polyadelphous) as in citrus."

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