The number of nuclei migrating from each of the micropylar quartet and chalazal quartet to the centre of the normal embryo sac is
One
Two
Four
Number not fixed
Draw the diagram of a mature embryo sac and show its $8-$ nucleate, $7-$ celled nature. Show the following parts : antipodals, synergids, egg, central cell, polar nuclei.
Which is not a part of pistle?
Match the columns
Column $I$ | Column $II$ |
$(a)$ Sex cell of | $(1)$ Synergid cells embryo sac |
$(b)$ Synergid cell of | $(2)$ Antipodal cells sex reproduction of embryo sac |
$(c)$ Cell opposite to | $(3)$ Egg cells sex cell of embryo sac |
$(d)$ The central cell of | $(4)$Secondary nucleus embryo sac |
Megasporangia arise from the ....