User:Mukundapriya/Sandbox

MEIOSIS IN ANIMALS

The term was coined by JB Former in 1905.Meiosis produces a total of four haploid cells from each diploid cell. These haploid cells either become or give rise to gametes which through union support several reproduction and a new generation of diploid organisms.Thus meiosis is required to run the reproductive cycle of eukaryotes.different stages of meiosis are:

Interphase: it resembles to early mitosis prophase. leptotene:chromosomes are more uncoied and assuming long thread like shape. zygotene:pairing of homologous chromosome takes place which is exact and specific. pachytene:pair of chromosomes become twisted spirally around each other. Diplotene:unpairing of homologous chromosomes is started. Diakinesis:bivalent chromosomes become more condensed and evenly distributed. Metaphase:spindle fibres attach to chromosome and align at the equator.