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An ovum is an egg in the ovary of the female. This egg is called the female "gamete" or sex cell. It combines with the male gamete, called a sperm, to form a zygote. This formation process is called "fertilization."
It is the first time we attempted to recognize the role of ovum in controlling gender of a fetus in large animals. We discovered that ovum, in a special environment can also control the sex of a fetus.
An Ovum is a female sex cell or a egg
what is a ovum and do the look like blood clots
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What layers do sperm penetrate to fertilize the oocyte?
Sperm penetrate through the zona pellucida, an acellular glycoprotein layer surrounding the oocyte, to reach the oocyte membrane for fertilization. The sperm then binds to specific receptors on the oocyte membrane to release enzymes that help in penetrating the oocyte membrane to fuse with the oocyte.
When a primary oocyte divides a secondary oocyte and what are produced?
A primary oocyte divides into a secondary oocyte and a polar body during meiosis I. The secondary oocyte undergoes meiosis II to produce a mature ovum (egg) and another polar body.
When the primary oocyte divides a secondary oocyte and what else is produced?
The primary oocyte divides into a secondary oocyte and a polar body during meiosis I. The secondary oocyte then goes through meiosis II to produce a mature ovum (egg) and another polar body.
Is It the secondary oocyte and not the egg that the sperm fertilizes?
Yes, it is the secondary oocyte that the sperm fertilizes. The secondary oocyte completes meiosis II to become a mature egg only after fertilization.
How does the sperm penetrate the oocyte?
The sperm penetrates the oocyte by first binding to the zona pellucida layer surrounding the oocyte. This triggers the acrosome reaction, releasing enzymes that help break down the zona pellucida. Once the sperm penetrates this layer, it fuses with the oocyte membrane to release its genetic material.
The cell commonly called the egg or ovum is more correctly called?
The egg or ovum is more correctly called an oocyte. It is referred to as an oocyte until it is fertilized by sperm, after which it becomes an embryo.
Words starting with OO?
oocyte
Prenatal maturation of oocyte?
Primordial, secondary, tertiary, and antral are the basic steps in a developing oocyte
Is Oocyte haploid?
Unfertilized egg is haploid; but fertilized egg is diploid. That is why you sometimes see chickens even in commercial eggs.
Does contact of a sperm with the oocyte membrane cause a completion of the second meosis?
Yes, contact of a sperm with the oocyte membrane triggers the completion of the second meiosis in the oocyte, leading to the formation of the female pronucleus. This process is essential for fertilization to occur.
What transports secondary oocyte toward uterus?
The fallopian tubes transport the secondary oocyte from the ovary toward the uterus. This process is facilitated by ciliary movement and muscular contractions within the fallopian tubes, which help propel the oocyte towards the uterus for potential fertilization.
What surrounds a primary oocyte?
follicle cells
