A staminode does not contain

anther

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filament

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connective

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pollen grains

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Solution

The correct option is D pollen grains

The arrow points to the hairy staminode of a Grinnell's Penstemon (Penstemon grinnellii) flower.
A sterile stamen is called a staminode.
The pollen grain is the male gametophyte forming the male gametes.
The anther is the pollen sac or the chamber where the pollen grains are formed.
The filament is the stalk of the stamen.

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