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Answer: (d) coleoptile

In a monocot (grass) embryo the plumule (shoot apex with a few leaf primordia) is enclosed in a hollow, foliar sheath called the coleoptile. The radicle and root cap are enclosed in a similar sheath called the coleorrhiza. The scutellum is the single shield-shaped cotyledon, and perisperm is persistent nucellus in some seeds.

Doubtly AI · 29 Oct 2026 AI-verified · Nov 2026 Report
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