Answer:
(a)The whole plant body of maize
plant including shoot tip cells remains in diploid (2n)condition. As the
microspore mother cell is a part of reproductive organ, the chromosome number
in these cells will remain same as the individual. i.e., 2n=20.These microspore
mother cells are further responsible for producing male gametes ,i.e., haploid
(n) by reduction division.
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