7 short Biology essys

Reproduction has been the forefront need of any life in the perpetuation of its species . Without it , species of that kind will cease to exist . It is therefore necessary that genes be passed on from one generation to another

Mitosis and meiosis does not necessarily happen in the same type of cells in the body . In general , there are two types of cells in the body somatic and germ cells . Let 's take the human species as an example . All of the human cells are somatic except for two , one of which comes

from the male and female , the sperm and ovum . Somatic cells undergo only mitosis , while the gametes or germ cells undergo mitosis and meiosis

Mitosis is a type of cellular reproduction in which the parent cells give rise to four daughter cells without the mixing of genetic information from two different parents hence the daughter cells contain the exact genetic material from that of the parent , named diploid cells Because of its nature of reproduction , it is sometimes called asexual type of reproduction since it does not involve crossing over of genes from two different parents . Mitosis occurs during growth of an individual , or when cells are torn , worn out or damaged and needs to be replaced

Meiosis , on the other hand , is a type of cellular reproduction in which the parent cells give rise to four daughter cells containing only half of the original number of chromosomes from that of the parent , hereby given the name...