Arrange in correct sequence the structures formed during spermatogenesis
$(a)$ Spermatogonia
$(b)$ Secondary spermatocyte
$(c)$ Primary spermatocyte
$(d)$ Spermatid
$c-d-b-a$
$a -b-c-d$
$a -c-b-d$
$c-a-d-b$
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.
Process of spermatogenesis is under the regulatory influence of
Name the hormones involved in regulation of spermatogenesis.
Which of the following groups of cell in the male gonad, represent haploid cells?