How the tapetal cells, which form the innermost wall layer of microsporongium, could become binucleate?
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a
By undergoing meiosis
b
Through polyteny
c
By endomitosis
d
Restitution nuclei formation
answer is C.
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Detailed Solution
By endomitosis, DNA replication and chromosome splitting takes place. The cell becomes bi-nucleate as there is no cytokinesis.Polyteny increases the amount of DNA.Restitution nuclei formation changes the ploidy level.Meiosis is reduction division.