Q.

Main important function of callase  

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a

Separates the four pollen from pollen tetrad

b

Is secreted by the outermost wall layer of anther

c

Forms callus

d

Is secreted by middle layers of anther 

answer is A.

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Detailed Solution

 

Tapetum is the innermost wall of anther .Tapetum helps in pollen wall formation, transportation of nutrients to inner side of anther, synthesis of callase enzyme for separation of microspore tetrads.

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