Practice question
Question
Which of the following correctly describes the function of the innermost wall layer of the microsporangium, and what is its ploidy level generally?
Explanation
The innermost layer is the Tapetum. Its primary function is to nourish the developing pollen grains. Tapetal cells typically possess dense cytoplasm and generally become bi-nucleate or polyploid due to endomitosis or free nuclear division without cytokinesis.
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