Question

Why meiosis -2 is required if reductional division has already been done in meiosis-2 ?

Answer 1

meiosis 1st is reductional division because number of cromosome is half in anaphase 1st but sister chromatids are not separated in meiosis 1st
they are attached by centromere and separated in meiosis 2nd (anaphase 2nd)