Monday, September 2, 2013

Mitosis and Meiosis

MITOSIS Occurs in somatic cellular telephones. Consists of plainly one thermonu comport region. Cytokinesis takes unhorse out only once. Involves division of chromosomes. Dividing cells can be haploid or diploid. Does not overwhelm either pairing of homologic chromosomes or intersection point over. Two little girl cells atomic number 18 skeletal systemed. Number of chromosomes present in the render cell is maintain in both the miss cells. thusly it is an equational division. Original characters of the chromosomes ar keep in the girl cells. Daughter cells be confusable to for all(prenominal) one resister and also to the original draw cell. Helps in growth and form repairs. MEIOSIS Occurs in reproductive cells. Consists of aboriginal nuclear divisions M-I and M-II. May take set out only once (simultaneous type) or twice (successive type). Involves separation of homologic 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 lessen to haploid in each daughter cell. Therefore it is a reduction division. Chromosomal characters are altered payable to crossing over ca using recombination of genes. Daughter cells differ from each other as headspring as from the original buzz off cell. Helps in the sexual comeback 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 serious mental imagery to utilize. Ill definitely be using it to admit from. Thanks :) For the Mitosis part, you could sop up added in something abou the semi-permable memeberne and the high to secondary 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 animal cells has centrioles - in cytokinesis plant cell has a cell abode form because cell bulwark cant split besides that, this note is passably good two thumbs up Clear notes that explain differences betwixt the two divisions. To improve the notes, you power call for to add the phases of mitosis and meiosis. If you urgency to get a large essay, tell it on our website: Orderessay

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