In humans, at the end of the first meiotic division, the male germ cells differentiate into the
Primary spermatocytes
Secondary spermatocytes
Spermatids
Spermatogonia
All extra embryonic membranes
Antifertilizins are contained in
Match the columns.
Column $I$ | Column $II$ |
$(a)$ Multiplier phase | $(1)$ Undeveloped primary oocyte |
$(b)$ Growth phase | $(2)$ Primary oocyte filled with developed cytoplasm |
$(c)$ Maturation 1 | $(3)$ Secondary oocyte |
$(d)$Maturation 2 | $(4)$ Germinal epithelial cells |
During the development of an embryo, migration and rearrangement of cells lead to a pattern formation known as
In mammals the female secondary sexual characters are developed by the hormone