Question

How does megaspore mother cell develop into a 7 cellef 8 nucleated embryo sac in an angiosperm?

Answer 1

During megagametogenesis, megaspore undergoes in division . First of all in megaspore,3 times karyokinesis are performed and resulted 8 nucleated cell. After that, cytokinesis is performed in such a manner that ; 1st of all two nucleus get aggergate at central region and form central cell, 3-3 nucleus go away toward polar region resulting 3 antipodal cell and egg appratus (1egg cell & 2 synergids) respectively.