In angiosperm, all 4 microspores of tetrad are covered by a layer whic – McqOptions

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1.	In angiosperm, all 4 microspores of tetrad are covered by a layer which is formed by [CBSE PMT 2002]
A.	Callose
B.	Cellulose
C.	Sporopollenin
D.	Pectocellulose
Answer» B. Cellulose

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