Reproduction and Growth in Animals
What is the correct sequence of sperm formation?
Give the names and functions of the hormones Involved In the process of spermatogenesis. Write the names of the endocrine glands from where they are released.
Hormone Function Origin of hormone
Gonadotropin Releasing Hormone (GnRH)
Act on anterior pituitary gland and stimulates the release of LH and FSH Hypothalamus
Luteinizing hormone (LH)
Acts at Leydig cells and stimulates secretion of androgen. Pituitary
Follicle Stimulating Hormone (FSH)
Acts on Sertoli cells and stimulates factors which are involved in spermatogenesis. Pituitary
What is the correct sequence of sperm formation?
Define spermiogenesis and spermiation.
In humans, at the end of the fist meiotic division, the male germ cells differentiate into the _______________.
2n = 16 is in a Primary spermatocyte which is in metaphase of first meiotic division. What shall be the total number of chromatids in each of the secondary spermatocyte?
How many sperms do produce from 4 primary spermatocytes?
The process of release of spermatozoa from Sertoli cells into cavity of the seminiferous tubules is called
The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is
The given table shows differences between spermatogenesis and spermiogenesis. Select the incorrect option.
Meiotic division during oogenesis is different from that in spermatogenesis. Explain how and why?
In humans, at the end of the first meiotic division, the male germ cells differentiate into the