Mitosis is equational division. It is required for growth, repair and regeneration. All the somatic cells undergo mitosis. Germ cells undergo... View Article
The two main classes of hormones secreted by the ovaries are estrogen and progesterone. These are steroid hormones. Estrogen is secreted by... View Article
Graafian follicle is the fully mature follicle, which ruptures and releases the ovum. Graafian follicle gets transformed into the corpus luteum... View Article
2n refers to having two sets of chromosomes or diploid organisms. E.g. humans are diploid with 2n = 46. Gametes are haploid and contain n = 23... View Article
During spermatogenesis, each spermatogonial cell gives rise to 512 sperms. After a series of mitotic divisions, each spermatogonium gives rise to... View Article
Ovarian cycle refers to the series of events occurring during a menstrual cycle, which comprises the development of follicles, ovulation and... View Article
On average it takes around 74 days in humans to complete spermatogenesis and produce sperms from primitive germ cells. Also Check: At What... View Article
Sperms are produced in the seminiferous tubules of testes. The fully formed spermatozoa get transferred to the epididymis through rete testis and... View Article
Primary spermatocytes are diploid. The spermatogonia cells proliferate and divide by mitosis to produce primary spermatocytes. Also Check:... View Article
Ovaries and testes produce and secrete hormones, so they are considered endocrine glands. The Leydig cells in the testes secrete testosterone and... View Article
Ovarian follicles secrete various hormones, which regulate their own development as well as ovulation and other events. They provide an essential... View Article
A single primary spermatocyte gives rise to four sperms after meiosis. Primary spermatocyte undergoes first meiotic division to produce two... View Article
The secondary oocyte is released into the peritoneal cavity near the fimbriated end of the fallopian tube, i.e. infundibulum. The released... View Article
Ovulation is triggered by a surge in luteinizing hormone or LH. It is a gonadotrophin secreted by the anterior pituitary. It induces ovulation... View Article
The rupture of the Graafian follicle results in ovulation. After ovulation, the Graafian follicle transforms into the corpus luteum. The corpus... View Article
Oogenesis starts at the embryonic stage itself. Primitive germ cells start dividing to form oogonia. No more oogonia are produced after birth. By... View Article
FSH (follicle-stimulating hormone) is a gonadotrophin secreted by the anterior pituitary. It stimulates follicular development in females and... View Article
Primary oocyte is a diploid cell, which is formed from the oogonia or gamete mother cell. Primary oocyte gives rise to secondary oocyte after the... View Article
