تماشای ویدئو انیمیشن فرایند میوز کراسینگ اور از آی-ویدئو

Read More: http://www.diseasesanddrugs.com Meiosis Meiosis is a specialized type of cell division that reduces the chromosome number by half. This process occurs in all sexually reproducing single-celled and multicellular eukaryotes, including animals, plants, and fungi. Meiosis Cross Over Chromosomal cross over (or crossing over) is the exchange of genetic material between homologous chromosomes that results in recombinant chromosomes during sexual reproduction. It is one of the final phases of ge