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    According to my book 'a gene is a length of DNA that codes for one (or more) polypeptides', but then it says that 'the operator and promoter are both genes as they are lengths of DNA, however they do not code for polypeptides'. But then wikipedia says that they're not genes 'Various short sequences that are not genes also affect gene expression, including the lac promoter, lac p, and the lac operator, lac o', so who's right? Or have I misinterpreted?
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    0.04572
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    also *who's
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    Woah! First rule. Never trust Wikipedia.

    Any idiot can edit/write articles.
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    (Original post by I am Dog)
    also *who's
    Changed it now, happy?






    :mad: grammar nazi
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    (Original post by Elnor)
    Woah! First rule. Never trust Wikipedia.

    Any idiot can edit/write articles.
    But the book contradicted itself, it said that genes code for proteins and the promoter and operator region don't code for proteins :confused:
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    Wikipedia is probably right, but in an exam, write what the textbook tells you. Either that, or there's some sort of dispute as to what the definition "gene" means. Welcome to science A level, nothing's in black and white and you are constantly beind lied to.

    If the information in the textbook conflicts with what outside sources are telling you, textbook is probably wrong. They just simplify the information for you so you don't end up doing graduate level biology instead of A level.
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    (Original post by celina10)
    But the book contradicted itself, it said that genes code for proteins and the promoter and operator region don't code for proteins :confused:
    Ah Right. Hmmm isn't your book refering to Introns and Exons?
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    (Original post by Elnor)
    Woah! First rule. Never trust Wikipedia.

    Any idiot can edit/write articles.
    all edits get moderated within about 2 mins you know,,,
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    OP, find the same question in a past paper and learn the answer verbatum

    t'is the only sure way
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    You still Can't trust the content.
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    (Original post by Barden)
    OP, find the same question in a past paper and learn the answer verbatum

    t'is the only sure way
    I guess that's just what I'll have to do
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    (Original post by Elnor)
    You still Can't trust the content.
    if it's cited correct sources you can...
 
 
 
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