Question

there are 16 cromosomes in a vegetative cell of pea plant.how many cromosomes will there in the pollengrain, endosperm,antipodal cell and egg cell​

Answer 1

If there are 16 chromosomes in a vegetative cell of a plant (vegetative cells are diploid, i.e. 2n).  

Then, the number of chromosomes in Pollen grains will be 8 because pollen grains form after meiosis in microspore mother cells(2n).

The number of chromosomes in endosperm will be 24 because it forms after triple fusion in angiosperms.

The number of chromosomes in antipodal will be 8 because it forms after mitotic division in functional megaspore(n) which is a haploid cell. Functional megaspore forms after meiosis in the megaspore mother cell(2n).

The number of chromosomes in the egg cell will be 8 because it also forms after mitotic division in functional megaspore(n) which is a haploid cell. Functional megaspore forms after meiosis in the megaspore mother cell(2n).