What Is the Role of Zona Pellucida in Implantation?
Zona pellucida is the glycoprotein layer surrounding the plasma membrane of the ovum. It covers the sticky trophoblasts cell initially... View Article
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In Which Part of Sperm Is Mitochondria Present?
Numerous mitochondria are present in the middle piece of a sperm. It provides the energy required for the movement of... View Article
How Many Spermatids Are Produced from One Primary Spermatocyte?
One primary spermatocyte leads to the formation of four spermatids. The meiotic division in primary and secondary spermatocytes is equal,... View Article
What Is the Corona Radiata Penetrating Enzyme?
The enzyme hyaluronidase present in the acrosome of the sperm helps in penetrating the corona radiata layer present around zona... View Article
What Holds Corona Radiata?
Corona radiata is the multiple layers of the granulosa cells present outside the zona pellucida layer. These cells are held... View Article
Is Zona Pellucida Acellular?
Yes, zona pellucida is an acellular layer surrounding the secondary oocyte. It is made up of a glycoprotein matrix. The... View Article
What Does the Nucleus Do in an Egg Cell?
The nucleus contains the genetic material in an egg. It is haploid. The nuclei of egg and sperm fuse to... View Article
What Is the Difference Between Sertoli Cells and Leydig Cells?
Sertoli cells are the nutritive cells present inside seminiferous tubules. They provide nourishment to the male germ cells. Leydig cells... View Article
What Gives Sperm Motility?
The tail of the sperm is responsible for its motility. The whipping back and forth movement of the tail propels... View Article
What Are the Stages of Follicular Development?
The development and maturation of ovarian follicles is called folliculogenesis. The small primordial follicles develop and mature into large preovulatory... View Article
What Is the Difference Between a Secondary Spermatocyte and a Spermatid?
The secondary spermatocyte gives rise to spermatid after meiosis II. Both the secondary spermatocyte and spermatid are haploid but the... View Article
What Is the Function of the Zona Pellucida?
Zona pellucida is a glycoprotein layer present outside the plasma membrane of the oocyte. It regulates the interaction between egg... View Article
What Is the Normal Site of Implantation?
The attachment of the blastocyst to the endometrium of the uterus is called implantation. The normal site of implantation is... View Article
What Three Hormones Are at High Prior to Ovulation?
The three hormones that are high prior to ovulation are LH, FSH and estrogen. Also Check: At What Age Does... View Article
Is a Sperm Cell Haploid or Diploid?
A sperm cell is haploid and contains 23 chromosomes in humans. It is formed after meiosis in primary spermatocytes. Also... View Article
What Is Another Term for the Mature Follicle?
Another term for the mature follicle is the Graafian follicle. They are named after Regnier de Graaf to honour his... View Article
How Long Does it Take for a Zygote to Become a Morula?
After fertilisation, the zygote starts dividing and produces 2, 4, 8, 16 daughter cells after subsequent cleavage. The daughter cells... View Article
What Makes an Embryo Implant?
The developing embryo at the blastocyst stage gets attached to the endometrium of the uterus through trophoblasts. The blastocyst gets... View Article
Which Enzyme Is Released by Sperm?
Sperm contains many enzymes in the acrosome, which help in entering the ovum. It contains degradative enzymes such as hyaluronidase,... View Article
Where Is the Zona Pellucida Found?
Zona pellucida is the glycoprotein layer, which surrounds the oocytes. Sperms need to penetrate this layer in order to reach... View Article
