Which of the following undergoes, the meiosis-I division?

  • A

    Primary spermatocytes

  • B

    Secondary spermatocytes

  • C

    Sertoli cell

  • D

    Leydig cell

Similar Questions

$A$ : Middle piece of sperm is called powerhouse.
$R$ : It contains mitochondria.

Draw a labeled diagram of a section through ovary.

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

Melotic division of the secondary oocyte is completed

  • [NEET 2020]

The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is

  • [AIPMT 2009]