In angiosperm all the four microspores of tetrad are covered by a layer which is formed by
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Answer: callose
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In angiosperm all the ‘four microspores’ of tetrad are ‘covered by a layer’ which is formed by callose.
Explanation:
Callose are polysaccharides that are formed in the case of any distress to the plant, it is formed and deposited on the plant cell wall on response to the formation of any wounds or if the plant is subjected to any pathogenic attack.
In the case of spores the callose starts to get deposited at the time of cell division and helps in protecting the tetrads.
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