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Monday, July 1, 2013

Mitosis and Meiosis

MITOSIS Occurs in somatic electric cells. Consists of lone(prenominal) one thermonu shed light on segmentation. Cytokinesis takes origin out only once. Involves division of chromosomes. Dividing cells can be monoploid or diploid. Does not demand either pairing of homologic chromosomes or crossing everyplace. Two misfire cells atomic number 18 skeletal systemed. Number of chromosomes present in the render cell is closely-kept in both the little girl cells. thusly it is an equational division. Original characters of the chromosomes ar hold in the lady friend cells. Daughter cells are confusable to separately contrary and also to the original vex cell. Helps in growth and form repairs. MEIOSIS Occurs in reproductive cells. Consists of primeval nuclear divisions M-I and M-II. May take rear end only once (simultaneous type) or twice (successive type). Involves separation of homologous chromosomes in M-I and division of chromosomes in M-II. Dividing cells are diploid. Pairing of homologous chromosomes and crossing over occur during Prophase-I. Four daughter cells are formed. Diploid number of chromosomes is reduce to haploid in for each one daughter cell. Therefore it is a reduction division. Chromosomal characters are modify payable to crossing over ca apply recombination of genes. Daughter cells differ from each other as well as from the original baffle cell. Helps in the sexual return and regulation of chromosome number in the deportment cycle of sexually reproducing organism
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--References --> Great notes on Mitosis and Meiosis. Theyre very clear and to the point. A good enough vision to utilize. Ill definitely be using it to admit from. Thanks :) For the Mitosis part, you could accommodate added in something abou the semi-permable memeberne and the high to baseborn consitration gradient. still they are good notes and i asure you this is going in my favourites! :-) this stuff is always on my test ;-) - only sentient being cells has centrioles - in cytokinesis plant cell has a cell scale leaf form because cell seawall cant split besides that, this note is picturesque good two thumbs up Clear notes that explain differences in the midst of the two divisions. To improve the notes, you susceptibility call for to add the phases of mitosis and meiosis. If you ask to get a safe essay, tell it on our website: Orderessay

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