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Thread: Can anyone explain...Meosis and Mitosis?

  1. #1 Can anyone explain...Meosis and Mitosis? 
    The Doctor Quantime's Avatar
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    I've always wondered what it is, actually being honest I saw a kid on Malcolm in the middle say something about it and was wondering what they are. Is it some sort of cell division.


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    Forum Cosmic Wizard paralith's Avatar
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    Quote Originally Posted by wikipedia
    Mitosis is the process by which a cell duplicates the chromosomes in its cell nucleus, in order to generate two, identical, daughter nuclei. It is generally followed immediately by cytokinesis, which divides the nuclei, cytoplasm, organelles and cell membrane into two daughter cells containing roughly equal shares of these cellular components.
    http://en.wikipedia.org/wiki/Mitosis

    Quote Originally Posted by wikipedia
    In biology, meiosis is the process by which one diploid eukaryotic cell divides to generate four haploid cells often called gametes.
    http://en.wikipedia.org/wiki/Meiosis


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    Forum Cosmic Wizard spuriousmonkey's Avatar
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    So for us multicellular organisms mitosis is a daily occurrence that provides for the growth of tissue for instance to replace shed skin.

    Meiosis takes place in our testicles for instance to make new sperm. The gametes that will fuse with female eggs who also have undergone meiosis and together they will form a whole again that will undergo mitosis to make a new organism, and meiosis to make more sperm and eggs to make the next generation.
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    The Doctor Quantime's Avatar
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    Quote Originally Posted by paralith
    Quote Originally Posted by wikipedia
    Mitosis is the process by which a cell duplicates the chromosomes in its cell nucleus, in order to generate two, identical, daughter nuclei. It is generally followed immediately by cytokinesis, which divides the nuclei, cytoplasm, organelles and cell membrane into two daughter cells containing roughly equal shares of these cellular components.
    http://en.wikipedia.org/wiki/Mitosis

    Quote Originally Posted by wikipedia
    In biology, meiosis is the process by which one diploid eukaryotic cell divides to generate four haploid cells often called gametes.
    http://en.wikipedia.org/wiki/Meiosis
    Thanks Paralith for the wiki reference, you could have dignified me with a human explantion . On the other hand you perhaps didn't know it and so referenced me there. Thanks spurious :P.
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    Administrator KALSTER's Avatar
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    Thanks Paralith for the wiki reference, you could have dignified me with a human explantion .
    You really think this was warranted? She made an effort for YOU. :x
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    The Doctor Quantime's Avatar
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    Quote Originally Posted by KALSTER
    Thanks Paralith for the wiki reference, you could have dignified me with a human explantion .
    You really think this was warranted? She made an effort for YOU. :x
    A minute one. I could have done that, in fact I was going to ask not to wiki quote. But thank you paralith anyway. It's difficult to explain yourself online, don't lose your temper, bloody hell.
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    Administrator KALSTER's Avatar
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    in fact I was going to ask not to wiki quote.
    Then you should have. No one lost his temper :? I was commenting on what looked like gross ungratefulness.
    Disclaimer: I do not declare myself to be an expert on ANY subject. If I state something as fact that is obviously wrong, please don't hesitate to correct me. I welcome such corrections in an attempt to be as truthful and accurate as possible.

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  9. #8  
    The Doctor Quantime's Avatar
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    Quote Originally Posted by KALSTER
    in fact I was going to ask not to wiki quote.
    Then you should have. No one lost his temper :? I was commenting on what looked like gross ungratefulness.
    Gross? I am grateful but I could have easily gone onto wiki myself, its common sense that I asked it on a science forum where people know this stuff half by half, instead of myself interperting the wiki bits wrong.
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  10. #9  
    Administrator KALSTER's Avatar
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    you could have dignified me with a human explanation
    You don't think that is gross, in fact offensive? Obviously, if it was within the realm of common sense, I am sure she would have obliged you. Your fraise imply that she was either lazy, or not much bothered with a proper reply, i.e. offensive
    Disclaimer: I do not declare myself to be an expert on ANY subject. If I state something as fact that is obviously wrong, please don't hesitate to correct me. I welcome such corrections in an attempt to be as truthful and accurate as possible.

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  11. #10  
    Forum Cosmic Wizard paralith's Avatar
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    I like to offer wikipedia links to relatively simple questions that could have very easily been answered by your own research online. That's what I do when teenagers come on the forum asking us to do their homework questions for them. I show them that with the motivation to look it up themselves, most of the time the answers are just out there waiting for them. If, after putting in their own effort and they are still confused, I invite them to ask us to help clarify things for them. Though I was surprised to find svwillmer doing such a thing, I simply obliged him the same way I do those kids. Many of those kids find this offensive at first as well.
    Man can will nothing unless he has first understood that he must count on no one but himself; that he is alone, abandoned on earth in the midst of his infinite responsibilities, without help, with no other aim than the one he sets himself, with no other destiny than the one he forges for himself on this earth.
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    Forum Freshman adamd164's Avatar
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    On a bit of a pedantic note, a point which I would like to make, in case there's any confusion, is that mitosis and meiosis are nuclear and not cellular divisions.

    Prior to cytokinesis, the cell is still whole.
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  13. #12  
    The Doctor Quantime's Avatar
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    Quote Originally Posted by paralith
    I like to offer wikipedia links to relatively simple questions that could have very easily been answered by your own research online. That's what I do when teenagers come on the forum asking us to do their homework questions for them. I show them that with the motivation to look it up themselves, most of the time the answers are just out there waiting for them. If, after putting in their own effort and they are still confused, I invite them to ask us to help clarify things for them. Though I was surprised to find svwillmer doing such a thing, I simply obliged him the same way I do those kids. Many of those kids find this offensive at first as well.
    I just didn't want to have a wiki quote, thats why I like this forum, people know this stuff and can communicate with you more so that wiki can. But thanks anyway for the effort, hope I didn't seem ungrateful, as I'm 100% certain I did.
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  14. #13  
    Forum Cosmic Wizard paralith's Avatar
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    Quote Originally Posted by svwillmer
    I just didn't want to have a wiki quote, thats why I like this forum, people know this stuff and can communicate with you more so that wiki can. But thanks anyway for the effort, hope I didn't seem ungrateful, as I'm 100% certain I did.
    I understand what you mean, but the general concepts of mitosis and meiosis are relatively simple and well understood. None of us would really have had that much more to offer in any better fashion than wikipedia could provide. If it were otherwise, then I would have described it myself. If I give out wiki quotes it's because they do just fine for the task at hand.
    Man can will nothing unless he has first understood that he must count on no one but himself; that he is alone, abandoned on earth in the midst of his infinite responsibilities, without help, with no other aim than the one he sets himself, with no other destiny than the one he forges for himself on this earth.
    ~Jean-Paul Sartre
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  15. #14  
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    Well, I do agree that it is not difficult to understand the two names.
    I remember when I first learnt these terms, I easily mix them up. So it is important to distinguish between the two. There are a few ways to do so easily. One of them is to remember that Meiosis involves the pairing up and seperation of homologous chromosome while Mitosis does not.
    P.S. Note the difference between Meiosis and Meitotic Cell Division, and between Mitosis and Mitotic Cell Division
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