MITOSIS, CYTOKINESIS, MEIOSIS AND APOPTOSIS Michelle Gehringer Department of Biochemistry and Microbiology, University of Port Elizabeth, South Africa Keywords: Cell cycle, checkpoints, growth factors, mitosis, meiosis, cyclin, cyclin dependent protein kinases, G1 phase, S phase, spindle, prophase, anaphase, metaphase,
Summary: At the end of meiosis, 4 daughter cells are formed = eggs or sperm. Each contains half as many chromosomes as the parent cell (n); each cell is genetically different from its parents and from its siblings. Fertilization of an egg by a sperm restores the chromosome number to 2n.
Best Answer: First of all the process of Meiosis in the development of gametes for sexual reproduction inceases variation by producing genetically non identical gametes. Sexual reproduction occurs by random fusion of gametes also increasing variation.Meiosis is a type of division to produce haploid gametes for sexual reproduction and takes place in the seminifrous tubules in the testes of male (humans) and in the ovaries of females.In plants the male sex cell (pollen) is produced in the anthers and the female sex cells (ovules) takes place in the ovary.Meiosis I halves the number or chromosomes. (a reduction division) Meiosis II doubles the number of cells to give four haploid gametes.n plants the male sex cell (pollen) is produced in the anthers and the female sex cells (ovules) takes place in the ovary. Meiosis I halves the number or chromosomes. (a reduction division) Meiosis II doubles the number of cells to give four haploid gametes.