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OCR 2010 A2 Biology Unit 2 - Control, Genome and Environment watch

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    (Original post by chuck111)
    does anyone have any past papers or questions for this exam?
    There wa a revision pack posted by 'Remarkable' some time back in this thread , 130 pages of cellular control and lots on ecosystems.
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    (Original post by chuck111)
    does anyone have any past papers or questions for this exam?

    i posted earlier past paper questions pack for cellular control, biotech and sustainability

    it is in here:

    http://www.thestudentroom.co.uk/show...66390&page=106

    scroll down for sustainability
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    (Original post by InvoluntarySlacker)
    I mean F211: Module 1 and F212: 1, 2 and 3
    Whats F211 and F212? I've forgotten.
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    (Original post by ViolinGirl)
    Whats F211 and F212? I've forgotten.
    lol f211 - cells, exchange and transport

    f212 - molecules, biodiversity, food and health
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    For protein synthesis, do we need to know about the 3'/5' ends
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    (Original post by Chunkeymonkey62)
    For protein synthesis, do we need to know about the 3'/5' ends
    I think this is more to do with PCR, and DNA probing more than cellular expression of genes (what I assume you mean by protein synthesis). I mean, correct me if i'm wrong someone :p:
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    (Original post by Chunkeymonkey62)
    For protein synthesis, do we need to know about the 3'/5' ends
    looking at the spec, i cant see anything that mentions it but i would learn it just in case
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    (Original post by Alex-92)
    I think this is more to do with PCR, and DNA probing more than cellular expression of genes (what I assume you mean by protein synthesis). I mean, correct me if i'm wrong someone :p:
    Yea. Ive done modules 2 and 4, so going on to one today and 3 tomorrow.

    I'll learn it just in case.
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    I'm going over the spec atm, can anyone explain this point:
    'describe with the aid of diagrams, the way in which a nucleotide sequence codes for the amino acid sequnce in a polypeptide'
    may e i'm just being blonde but i dont understand what it means, thanks x
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    (Original post by chuck111)
    umm in the specification, near the topic title
    for example it says for cellular control and variation:

    " From other modules within this specification:
    F211 Module 1;
    F212 Module 1, Module 2, Module 3."

    i think thats right
    Ahh. I think I get most of the links, e.g enzymes to Mod 1 and Variation in mod 3 etc.

    Im glad I retook F212 this summer. :p:

    Also, thinks for the revision cards. They are indeed useful!
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    (Original post by dopeyangel101)
    I'm going over the spec atm, can anyone explain this point:
    'describe with the aid of diagrams, the way in which a nucleotide sequence codes for the amino acid sequnce in a polypeptide'
    may e i'm just being blonde but i dont understand what it means, thanks x
    umm thats transcription/translation lol :P
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    (Original post by Remarqable M)
    i posted earlier past paper questions pack for cellular control, biotech and sustainability

    it is in here:

    http://www.thestudentroom.co.uk/show...66390&page=106

    scroll down for sustainability
    thanks,but umm is that the right link cus it keeps taking me back to this page?
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    (Original post by chuck111)
    umm thats transcription/translation lol :P
    ooooooooooooooo ok, i though so, just wasnt 100% sure, thanks
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    (Original post by Remarqable M)
    lol f211 - cells, exchange and transport

    f212 - molecules, biodiversity, food and health
    nevermind i got them :
    thanks so much
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    what do centrioles do in meosis? make up the spindle fibre?
    also, what is non-disjunction? two non related random questions there
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    wots the difference between management strategies and reclamation startegies???:confused:
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    (Original post by alimurphy)
    what do centrioles do in meosis? make up the spindle fibre?
    also, what is non-disjunction? two non related random questions there
    Centrioles migrate to opposite poles of cell, and produce spindle fibres.
    Non-disjuction is the failure of homologous pairs of chromosomes to separate during anaphase I.
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    (Original post by Nixani)
    wots the difference between management strategies and reclamation startegies???:confused:
    Management strategies aim to keep the ecosystem stable, in its current condition, reclamation stategies are those where the ecosystem is damaged and you need to replace the disrupted community with another.

    Management strategies include things such as: Increasing the carrying capacity by providing extra food, the translocation of certain species to fragmented habitats.

    Reclamation strategies- recolonising the area, captive breeding programs, perhaps enforcing protection on endangered species in the area. Attempting to increase these propulations.
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    (Original post by Remarqable M)
    lol f211 - cells, exchange and transport

    f212 - molecules, biodiversity, food and health
    Hi. Sorry to bother you. But I can't find the ecosystems pack. I'd really appreciate it if you posted link.
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    Hello people..

    Learnt Mod 1,2 and 3. Now mod 4. :facepalm:
 
 
 
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