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प्रश्न
Name the functions - Acrosome of sperm.
What is the function of acrosome of sperm.
Name the function of the following:
Acrosome
उत्तर
It is a cap-like structure present in the anterior part of the head of the sperm. It contains hyaluronidase enzyme, which hydrolyses the outer membrane of the egg, thereby helping the sperm to penetrate the egg at the time of fertilization.
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संबंधित प्रश्न
Draw a sectional view of human ovary and label the different follicular stages, ovum and Corpus luteum.
The fusion of the male and the female gametes is called __________.
Describe the process of budding in hydra.
Describe the process of spermatogenesis with the help of diagram.
At the time of birth, there are _______________ oocytes in the ovary of a female foetus.
The glandular accessory organ which produces the largest proportion of semen is ____________.
Mammalian egg is ____________.
At what stage of development are the gametes formed in newborn male and female?
Complete the analogy.
1 primary spermatocyte : 4 spermatozoa :: 1 primary oocyte : ____________.
Calculate the number of sperms and ova produced from 40 primary spermatocytes and 40 primary oocytes.
Four primary spermatocytes give rise to ______.
Which of the following events take place during spermatogenesis?
Find out the CORRECT sequence of spermatogenesis.
The human male gamete is usually about ______ in length.
Extrusion of second polar body from egg nucleus occurs ______.
Sertoli cells are found in ______.
Gray crescent is the area ______.
The head of the epididymis at the head of the testis is called ______.
The process of release of spermatozoa from Sertoli cells into cavity of the seminiferous tubules is called ______.
The principal tail piece of human sperm shows the microtubular arrangement of ______.
Acrosome is a type of ______.
During oogenesis, each diploid cell produces ______.
Head of epididymis is called as ______.
Read the following and answer from given below:
Oogenesis is the process of the formation of an ovum in the ovaries. It consists of three phases: multiplication, growth, and maturation. Oogenesis is controlled by hormones GnRH, LH, FSH. GnRH secreted by the hypothalamus stimulates the anterior lobe of the pituitary gland to secrete LH and FSH.
Which cell division is involved in the formation of secondary oocytes?
Which of the following cells during gametogenesis is normally diploid?
Germ cells present in the seminiferous tubules undergo ______
Which type of cell division forms spermatids from the secondary spermatocytes?
During spermatogenesis meiosis occurs in ______.
What is spermatogenesis?
