Movement of sperm is done by
Tail
Head
Acrosome
Middle piece
Spermatogonia formed after which cell division
Which of the following phase in development of a sperm has no counterpart in development of an ovum
Sperms formed from $4$ primary spermatocytes are
Match the columns.
Column $I$ | Column $II$ | ||
$(a)$ | Mens pubis | $(1)$ | Embryo development |
$(b)$ | Antrum | $(2)$ | Sperm cell |
$(c)$ | Trophoblast layer | $(3)$ | External genitals offemale |
$(d)$ | Mitochondria | $(4)$ | Graafian follicle |
The first meiotic division in the oogonium is completed when the egg is within the