The Development of the Egg and Sperm

Charlene Forest is an associate professor in the Biology department at Brooklyn College, who dedicates her research in to trying to understand the mechanism behind the process of fertilization in algae, as well as what controls expression of gamete-specific genes. To do so, she must understand how sperm and egg gametes first recognize and then fuse with each other. Thus, in order to find what causes the fusion of these gametes, Forest’s lab is cloning genes that prevent the fusion of sperm and egg gametes. She hopes that her research on the fertilization process in algae will help understand the fertilization process in other organisms, particularly humans.

Compare and contrast the three reproductive strategies of vertebrates. Vertebrates have three reproductive strategies. The first is an ovipary which refers to the development of an egg outside the mother's body. The next is an ovovivipary refers to the development of an egg inside the mother’s body. The next is the vivipary which refers to birth and not having an egg inside or outside the mother’s

Males produce so many sperm in order to increase the likelihood of fertilization. The more sperm present in the vicinity of the egg, the more likely that the egg will be penetrated and fertilized. (Braden).

life when a sperm cell unites with an ovum or egg cell. These cells create a fetus and

Conception also known as fertilisation is the fusing of two gametes. This creates an embryo which will eventually develop into a baby. All human life begins with conception. A fertile woman will usually produce one egg a month around 2 weeks after the last menstrual period.

Martin, after careful consideration and researching in unique methods, comes to an overall conclusion that there are cultural influences in the way egg and sperm interactions are presented in textbooks. This conclusion has many serious

The female reproductive system contains two ovaries. The ovaries nourish the eggs as they mature and are ready for fertilization. An egg will come to maturity approximately every 28 days. When the ovum has matured, the ovary releases it in a process called ovulation. After ovulation the ovum moves into the fallopian tube adjacent to the ovary.

The reproductive system is questionably the body system that is the most important influence on life as we know it. It is the w ay in which we procreate and ensure our existence as a species. However, the penis is only one part of the male reproductive system, which constitutes of a series responsible for generating, storing, and transporting the genetic material contained in the sperm cells. The main organs include: testicles (or testes), the epididymides, the vas deferens, the ejaculatory duct, the urethra, and the penis. Others are the scrotum, urogenital opening, and the prostate gland.

When sperm fertilizes an egg, conception occurs. For conception to occur the sperm and egg must meet. This is a story about how Bob, the sperm and Mary, the egg meet for the first time. The moment Bob and Mary come together a new individual is formed. Mary's was produced at the time she was in a fetus's ovaries. It has been over 23 years since she and five million others like her were produced. It is an exciting day for Mary because unlike all the others she was chosen to meet Bob. Bob also feels awesome today because unlike all the other millions of sperm discharged, he was the only one that made it to the finish and met Mary. The beginning of Bob and Mary's story starts when they

sperm as a superior and the egg as an expelling organ part. Moreover, the features of the egg and

eggs will essentially mature. Contrary to women, a man begins producing sperm at puberty, which gradually decreases along with age. During the actual conception, over 200 million sperms head towards the egg and try to break through. One is successful, the rest aren’t.

Lee and George support their argument by providing three important facts that differentiate a human embryo is, in fact, a human being. First, they say that sex cells and somatic cells are part of a larger organism while the human embryo is a complete or whole organism, though immature (14). Secondly, they say that the embryo is human and has all the characteristics of a human being but the sex and somatic cells are genetically and functionally different because they cannot develop

Reproduction is divided into two categories: Sexual and Asexual reproduction. Sexual reproduction is the combination of two sex cells while asexual reproduction is the division of the cell into smaller genetically identical copies.Sexual reproduction is vital process of life. Although it has many advantages, it also has some disadvantages. “Life Ascending: The Ten Great Invention of Evolution” by Nick Lane, a British biochemist explains the path of evolution.This work received the Royal Society Prize for Science Books prize in 2010. The author has a PHD in biochemistry and was an honorary researcher for the University College London. This suggests that he is reliable as he has the highest possible qualification in his field, the PHD. The purpose of this critique is analyze the theories about the importance of sexual reproduction and the advantages and disadvantages of both forms of reproduction.

The Female Reproductive System parts are gametes, which is a mature haploid male or female germ cell that is able to unite with another of the opposite sex in several reproductions to form a zygote. Egg is a person possessing a specified quantity. Ovum is a mature female reproductive cell especially of a human or other animal that van divide to give rise to an embryo usually only after fertilization by a male cell. Vaginal is a muscular tube leading from the external genitals to the cervix of the uterus in women and most female mammals. Labia is the inner and outer folds of the vulva, at either side of the vagina. Clitoris is a small sensitive and erectile part of the female genitals at the anterior end of the vulva. Urethra is a duct by

Do you know how you were born? Do you know how you came to be? The reproductive system is the system that made that all possible. Without the reproductive system you wouldn’t have been born. In order to produce offspring, the male and female reproductive systems have to be different. Each system has different parts, problems and care. Each system have different purposes, the male reproductive system’s function is to produce sperm, while the female reproductive system’s function is to produce ova, store ova and house a fertilized egg.