Extrusion of second polar body from egg nucleus occurs 

  • [NEET 2019]
  • A

    after entry of sperm but before fertilization

  • B

    after fertilization

  • C

    before entry of sperm into ovum

  • D

    simultaneously with first cleavage

Similar Questions

Corpus luteum is a mass of cells found in

  • [AIIMS 2010]

What is the correct sequence of sperm formation?

  • [NEET 2013]

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

Give scientific reasons : The spermatids are transformed into spermatozoa by the process called spermiogenesis.

Select the correct option of haploid cells from the following groups

  • [NEET 2020]