The fertilized egg cell is called a zygote and divides to form an embryo.
The zygote undergoes mitotic cell division as it begins to divide. This process involves the duplication and equal distribution of genetic material into two daughter cells.
Fertilization occurs when the sperm of a male is fused with an ovum, or egg, within the fallopian tube of a female. During this time, the sperm fuses with the ovum in order to form a single cell called a zygote. The zygote begins to divide as it is propelled through the fallopian tube, towards the uterus, by long hairs which grow from cells within the fallopian tubes. Once the zygote begins to divide it is called an embryo. After the embryo reaches the uterus, it attaches to the uterine wall through the process of implantation. After implantation occurs, the traditional nine month pregnancy begins.
The zygote begins to divide into a blastocyst around 4-5 days after fertilization. This process involves multiple cell divisions and leads to the formation of the blastocyst, which is essential for implantation into the uterine lining.
Prenatal development actually begins when the first initial cells divide. Development continues daily until the baby is born. There are differing opinions about this and it is somewhat subject to debate.
Humans start out as the fusion of a sperm cell from the father and an egg cell from the mother, resulting in a fertilized egg called a zygote. This zygote then begins to divide and grow, eventually developing into a mature human being.
After fertilization, the egg and sperm fuse to form a zygote. The zygote begins to divide and undergo cell division, forming a blastocyst. The blastocyst implants into the uterus lining, where it continues to grow and develop into an embryo.
sporophyte
sporophyte
The process of the joining of a sperm and egg cell is called fertilization. It typically occurs in the fallopian tubes, where a sperm cell penetrates the egg cell, leading to the formation of a zygote. This zygote then begins to divide and develop into an embryo.
A zygote is formed when a sperm fertilizes an egg in the fallopian tube. This usually occurs during sexual intercourse.
The zygote develops into a blastocyst as it undergoes multiple divisions. This stage occurs before implantation in the uterus.