The entry of one sperm through zona pellucida induces structural changes in the layer and prevents further entry of additional sperms. Also... View Article
Zona pellucida is the inner layer surrounding the oocyte. It consists of glycoproteins. Corona radiata is made up of multiple layers of granulosa... View Article
Oocyte is an immature egg. There are two types of oocytes. Primary oocytes give rise to secondary oocytes after meiosis I and a secondary oocyte... View Article
No, cells produced after meiosis contain half the number of chromosomes present in the parent cell. Meiosis occurs in germ cells to give rise to... View Article
Leydig cells produce androgens. Luteinizing hormone released from the pituitary gland stimulates the synthesis and release of androgens from the... View Article
In the follicular phase, one of the tertiary follicles grows and matures, it is called the Graafian follicle. Gonadotropins (LH and FSH)... View Article
Developing ovarian follicles mainly secrete estrogen. After ovulation, the ruptured follicle transforms into the corpus luteum, which secretes... View Article
The egg reaches fallopian tubes after ovulation from the ovary and then reaches the uterus. It is collected in the funnel-shaped infundibulum.... View Article
Each primary oocyte gives rise to one secondary oocyte and the first polar body after meiosis I. The secondary oocyte also undergoes unequal... View Article
Oogonia are female gamete mother cells, which are diploid cells. They are formed from primitive germ cells. They produce eggs by oogenesis.... View Article
Luteinizing hormone or LH induces ovulation. It is released by the anterior pituitary. There is a rapid surge in LH just before ovulation. Also... View Article
Secondary spermatocytes produce two spermatids by meiosis II, which transform into two sperms. Also Check: Why Is A Single Ovum Produced By... View Article
The first polar body is formed after meiosis I in the primary oocyte. It contains 23 chromosomes and is very small in size. Most of the cytoplasm... View Article
Spermatids are produced from secondary spermatocytes after meiosis II. Spermatids are haploid and transform into sperms after structural... View Article
Spermatogonia are diploid cells. They proliferate and undergo mitosis to produce primary spermatocytes. Also Check: Why Is A Single Ovum... View Article
The process of the release of a secondary oocyte from the ovary is called ovulation. Graafian follicles rupture and release an ovum. LH surge... View Article
The ovulated egg is technically a secondary oocyte. The meiosis II in the secondary oocyte arrests at metaphase II and does not complete until... View Article
A secondary oocyte is formed from the primary oocyte after meiosis I. It is a haploid cell and contains 23 chromosomes in humans. Also Check:... View Article
Spermatids become sperms by the process of spermiogenesis. Spermatids do not divide further and undergo morphological transformation to form... View Article
Sperms are the male gametes produced by spermatogenesis in the testes. They are motile and comprise the head, neck, middle piece and tail. The... View Article
