: a usually long and single nerve-cell process that usually conducts impulses away from the cell body.â axÂ·oÂ·nal \Ëak-sÉn-Él; ak-Ësaen-, -ËsÃ¤n-\ ËsÅn. adjective a usually long and single nerve-cell process that usually conducts impulses away from the cell body.
The significance of meiosis :-. 1. It maintains the same chromosome n umber in the sexually reproducing organisms. From a diploid cell, haploid gametes are produced which in turn fuse to form a diploid cell. 2. It restricts the multiplication of chromosome number and maintains the stability of the species. 3. Maternal and paternal genes get exchanged during crossing over.
Even in animals, cytokinesis and mitosis may occur independently, for instance during certain stages of fruit fly embryonic development. Significance. Mitosis is important for the maintenance of the chromosomal set; each cell formed receives chromosomes that are alike in composition and equal in number to the chromosomes of the parent cell. Mitosis occurs in the following circumstances: Development and growth The number of cells within an organism increases by mitosis.