A) outermost layer of endosperm
B) a sheath that protects the radicle
C) the place where the seed is attached to raphe
D) a cotyledon
Correct Answer: D
Solution :
The monocotyledonous embryo of grasses is strikingly different from that of other monocotyledons. The mature embryo has a single cotyledon called scutellum. The portion of embryonal axis below scutellum is radicle while the portion of embryonal axis above the level of scutellum is epicotyl.
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