Chromosomes are long sections of genes that carry genetic information. These are generally made up of DNA and proteins and they are situated in the nucleus of our cells. Chromosomes determine anything from locks color and attention color to intercourse. Regardless if you are a male or female is based on the presence or lack of particular chromosomes. Human cells have 23 pairs of chromosomes for an overall total of 46. You will find 22 pairs of autosomes (non-sex chromosomes) and something set of intercourse chromosomes. The intercourse chromosomes would be the X chromosome plus the Y chromosome.
In human being reproduction that is sexual two distinct gametes fuse to create a zygote. Gametes are reproductive cells created by a form of mobile unit called meiosis. Gametes may also be called intercourse cells. They have just one collection of chromosomes and are also therefore reported to be haploid. The male gamete, called the spermatozoan, is reasonably motile and often features a flagellum. The feminine gamete, called the ovum, is nonmotile and fairly big when compared to the male gamete. As soon as the male that is haploid female gametes unite in an ongoing process called fertilization, they grow into what exactly is called a zygote.