At Which Stage of the Development Ovum Is Released from the Ovary of the Human Female?
At the secondary oocyte stage of oogenesis, ovulation takes place with the rupture of the Graafian follicle. Rapid secretion of... View Article
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In Which Embryonic Stage Does Implantation Take Place?
The implantation takes place at the blastocyst stage. The outer trophoblast layer gets attached to the endometrium and gets embedded.... View Article
What Dissolves Corona Radiata?
Corona radiata is the multiple layers of granulosa cell present around the zona pellucida layer, which surrounds the ovum. The... View Article
How Many Sperm Enter an Egg?
Only one sperm out of thousands of sperms released at the time of insemination can penetrate the egg and fertilise... View Article
Why Does Zona Pellucida Layer Block the Entry of Additional Sperm?
The entry of one sperm through zona pellucida induces structural changes in the layer and prevents further entry of additional... View Article
What Is the Difference Between Zona Pellucida and Corona Radiata?
Zona pellucida is the inner layer surrounding the oocyte. It consists of glycoproteins. Corona radiata is made up of multiple... View Article
Is Oocyte an Egg?
Oocyte is an immature egg. There are two types of oocytes. Primary oocytes give rise to secondary oocytes after meiosis... View Article
Are Cells Genetically Identical Resulting from Meiosis?
No, cells produced after meiosis contain half the number of chromosomes present in the parent cell. Meiosis occurs in germ... View Article
What Do Leydig Cells Release?
Leydig cells produce androgens. Luteinizing hormone released from the pituitary gland stimulates the synthesis and release of androgens from the... View Article
What Is a Mature Follicle Size?
In the follicular phase, one of the tertiary follicles grows and matures, it is called the Graafian follicle. Gonadotropins (LH... View Article
What Do Developing Ovarian Follicles Secrete?
Developing ovarian follicles mainly secrete estrogen. After ovulation, the ruptured follicle transforms into the corpus luteum, which secretes progesterone. Also... View Article
Where Does the Egg Travel When it Leaves the Ovary?
The egg reaches fallopian tubes after ovulation from the ovary and then reaches the uterus. It is collected in the... View Article
How Many Ova Will Be Produced from 100 Primary Oocytes?
Each primary oocyte gives rise to one secondary oocyte and the first polar body after meiosis I. The secondary oocyte... View Article
What Are Oogonia Cells?
Oogonia are female gamete mother cells, which are diploid cells. They are formed from primitive germ cells. They produce eggs... View Article
Which Pituitary Hormone Controls Ovulation?
Luteinizing hormone or LH induces ovulation. It is released by the anterior pituitary. There is a rapid surge in LH... View Article
How Many Sperms Do Secondary Spermatocytes Produce?
Secondary spermatocytes produce two spermatids by meiosis II, which transform into two sperms. Also Check: Why Is A Single Ovum... View Article
How Many Chromosomes Are in the First Polar Body?
The first polar body is formed after meiosis I in the primary oocyte. It contains 23 chromosomes and is very... View Article
Which Cells Produce Spermatids?
Spermatids are produced from secondary spermatocytes after meiosis II. Spermatids are haploid and transform into sperms after structural modifications. Also... View Article
Are Spermatogonia Haploid or Diploid?
Spermatogonia are diploid cells. They proliferate and undergo mitosis to produce primary spermatocytes. Also Check: Why Is A Single Ovum... View Article
What Is the Process Called When the Secondary Oocyte Is Expelled from the Ovary?
The process of the release of a secondary oocyte from the ovary is called ovulation. Graafian follicles rupture and release... View Article
