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    Transcription - http://www.dnalc.org/resources/3d/13...-advanced.html
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    What raw marks do people think I'll need for 73 UMS?
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    (Original post by scubaferret)
    Nope, they just mark the first 3
    At the PhilipAllan conference for F211 and F214 last November. Examiners went through the Exam Techniques and that was a key point.

    1 mark question - 1st point marked only - regardless

    2 mark question - only points 1 and 2 marked, rest are ignored

    10 mark question - ones which are repeated points are not marked and even then the first 10 lines are marked...

    This entire new marking system can penalise some...its all about exam techniques...
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    (Original post by rebeccalouise_92)
    can someone please describe cAMP and protein activation....
    all there is in my text book is that cAMP activates some proteins by changing their tertiary structure resulting in them being a better complementary fit to their substrate molecules, there is more about it on the other side of the course in relationship to adrenaline in the homeostasis topic
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    (Original post by scubaferret)
    Nope, they just mark the first 3
    Not true. Unless it specifically asks for a number of points, you can waffle as much as you like and they'll mark the whole thing.
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    Translation - http://www.dnalc.org/resources/3d/16...-advanced.html
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    (Original post by intellectual1)
    At the PhilipAllan conference for F211 and F214 last November. Examiners went through the Exam Techniques and that was a key point.

    1 mark question - 1st point marked only - regardless

    2 mark question - only points 1 and 2 marked, rest are ignored

    10 mark question - ones which are repeated points are not marked and even then the first 10 lines are marked...

    This entire new marking system can penalise some...its all about exam techniques...
    I love that this is the first time I've heard it, guess I've gotta think before I write instead of putting down everything
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    can someone explain the whole of the sliding filament to me plz
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    no seriously, action potential....what the hell happens?
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    Does anyone know how many UMS 60/100 raw marks are? Please?
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    So pleased about the low UMS grading for F215! :awesome:
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    Any point revising "flight or fight response" as that was the main essay question in the past paper.. jan 2011 I think?!
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    (Original post by Nadooo)
    Does anyone know how many UMS 60/100 raw marks are? Please?
    120 UMS on Jan 2011
    Bit less on June 2010

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    (Original post by ekta9)
    Any point revising "flight or fight response" as that was the main essay question in the past paper.. jan 2011 I think?!
    Nope, haha!

    Could still come up though! Imagine if it did!? Would catch out so many people! :ninja:
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    (Original post by Snurse)
    Just to clarify for tomorrow is it when reverse transcriptase enzyme is used, find mRNA of gene you want, e.g. in b-cells of islets of langerhans for insulin, then reverse transcriptase adds complementary DNA nucleotides so get template strand then DNA polymerase to make complete cDNA???

    :/ not sure if thats completely right

    just got my book and thats right, free DNA nucleotides are then added to the ends of the cDNA to make complementary sticky ends to plasmid.
    yeah that sounds right to me although I hope this doesnt come up tomorrow lol I think it came up in jun 2010?
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    (Original post by Tetanus)
    120 UMS on Jan 2011
    Bit less on June 2010




    How did you work it out?
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    http://www.youtube.com/watch?v=x5yPkxCLads

    Watching that pretty much guarantees you an A
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    (Original post by Tetanus)
    So pleased about the low UMS grading for F215! :awesome:
    No kidding - untill i heard about that i was convinced i was in CDE territory ^^
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    (Original post by fahimak)
    can someone explain the whole of the sliding filament to me plz
    when teh sarcoplasmic reticulum release calcium this binds to the troponin which changes shape moving the tropomyosin away from the to actin binding sites.

    this allows a myosin head group to attach to the thin filament and this forms a cross bridge

    the head group bends causing the thin filament to be pulled along and overlap the thick filament. adp n pi are released

    the cross bridge breaks as new atp attaches to teh myosin head

    head groups move back an attach as a result

    movement of actin filaments = muscle contraction. the contraction cycle continues if atp is available and calcium level in teh sarcoplasm is high.. atp is only available for 2 secs in the muscle other sources are aerobic respiration which needs 02, anaerobic resp and phosphate creatine
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    (Original post by Nadooo)



    How did you work it out?
    UMS Grading for January 2011 OCR Modules: BOOM!

    UMS Grading for June 2010 OCR Modules: Reload... BOOM!

    Scroll down to find the Biology Modules, couple of pages down I think..

    :ahee::ahee::ahee:
 
 
 
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