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.
The number of embryo sac in an ovule is generally
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 |
Describe the structure of Megasporangium with a diagram.
Polar nuclei are located in