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Question

The single cotyledon of maize grain is called

A
scutellum
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B
plumule
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C
coleorhiza
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D
coleoptile
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Solution

The correct option is A scutellum
The single, large, shield-shaped cotyledon of maize grain is called scutellum. It is a characteristic feature of monocot seeds.

Seeds germinate bearing a short axis called plumule and radicle.
Plumule is a part of the embryo which develops into a shoot bearing the first leaves.
Radicle grows downward and develops into the root system.
The plumule and radicle are enclosed in a sheath called coleoptile and coleorhiza, respectively, in monocots.



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