Process of formation of the new person is the real sacrament which is in power of the mother nature. Surprisingly, but the fact - each person once was a zygote. So it zygote?
The zygote is a diploidic cage which is formed as a result of merge of gametes, a men's gamete (spermatozoon) and a female gamete (ovum). The Diploidnost of a zygote consists available a full (double) range of chromosomes. The zygote begins to develop at once after the taken place fertilization (fertilization). The term "zygote" was introduced by the German scientist Edward Strasburger at the end of the 19th century for the first time. This famous botanist contributed significantly to cytology and the chromosomal theory of heredity, having revealed that processes of cell fission happen approximately according to the identical scheme both at plants, and at animals, and at the person.
After a fertilization the zygote goes to the woman's uterus, on the way developing and being split up. The first mitotic division of a zygote in an organism of the woman happens usually in 30 hours after merge of gametes. This process is dragged out in connection with duration of preparation for the first act of crushing in a difficult human body. Cages which were created as a result of crushing of a zygote are called blastomer. The first divisions of a zygote are considered as drobleniye as between divisions there is no stage of cellular growth, and daughter cells after each division become more small. In other words, the zygote is really split up until the germ is not formed of it. One of properties of zygotes – a totipotentnost. It is expressed in ability of a cage to share and form embryo fabrics. The zygote which took root into a uterus potentially leads to full development of a human embryo if does not meet any serious obstacles. The most various factors, for example, rare chromosomal anomalies (mutations), the use by mother of alcohol, nicotine, drugs, some medicinal substances, transferring of serious viral diseases and so forth can interfere with development of a zygote.