Question

The number of chromosomes in the shoot tip cells of a maize plant is 20 .the number of chromosomes in the micro spore mother cells of the same plant shall be

Answer 1

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.