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    This bitter sweet irony I got 63 on the 2013 paper missing an A by one mark just like unit 1 in January

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    Is inter-phase a stage in mitosis or does mitosis begin with prophase?
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    (Original post by JRN-95)
    Is inter-phase a stage in mitosis or does mitosis begin with prophase?
    Interphase is first then prophase, a way I remember is

    Interpase
    Prophase
    Metaphase
    Anaphase
    Teleopase

    So In Poland Men Are Tough, my sister taught me this so I hope it helps
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    (Original post by Iloveleonardo)
    Interphase is first then prophase, a way I remember is

    Interpase
    Prophase
    Metaphase
    Anaphase
    Teleopase

    So In Poland Men Are Tough, my sister taught me this so I hope it helps
    haha thats great!! thanks a lot
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    (Original post by JRN-95)
    Is inter-phase a stage in mitosis or does mitosis begin with prophase?
    No interphase is NOT a stage in mitosis. Mitosis begins with prophase.
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    (Original post by Iloveleonardo)
    Interphase is first then prophase, a way I remember is

    Interpase
    Prophase
    Metaphase
    Anaphase
    Teleopase

    So In Poland Men Are Tough, my sister taught me this so I hope it helps
    But don't forget to include cytokinesis, i remember it :
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    Hey could someone please help me, In the jan 13 paper there's a question worth 2 marks which is:
    'suggest how the cell cycle will be affected in cells that have become cancerous'
    And although I've looked at the mark scheme, I'm struggling to understand how and why it's affected.
    Thanks for the help in advance!


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    is it still possible to revise? i got a D in january want a B at least? havent started
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    (Original post by xstarsx67)
    Hey could someone please help me, In the jan 13 paper there's a question worth 2 marks which is:
    'suggest how the cell cycle will be affected in cells that have become cancerous'
    And although I've looked at the mark scheme, I'm struggling to understand how and why it's affected.
    Thanks for the help in advance!


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    basically, tumour suppressor genes are responsible for telling the cell cycle to stop, so don't make new proteins, or divide. If the tumor supressor gene is faulty, it won't be able to carry it out it's function which is marking point 3. And if it's not able to control division, then you know the cell cycle will occur faster (in less time) as it won't have to stop ~ marking point 2. Because it's faster as a whole, mitosis is faster, and interphase will be faster (marking point 1), and finally, because the whole thing is happening so fast and uncontrollably, the cells aren't able to specialise, as they presumabely start to go through the cell cycle, as there's nothing to tell it not too..

    hope this helps, if not, let me know
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    (Original post by cyberphilic_9999)
    is it still possible to revise? i got a D in january want a B at least? havent started
    Yes yes yes! Go through the past papers, examiner reports and mark schemes If you at least understand how they ask the questions and what they expect from your answer, you'll be okay. Best of luck!
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    Does anyone know the risks associated with the mitosis practical?
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    (Original post by justanotherindigo)
    Does anyone know the risks associated with the mitosis practical?
    cutting root tip- could cut and harm self-cut downwards on a tile when cutting the root tip
    acid-could hurt/damage eyes-corrosive- wear goggles
    cant think of anymore :/
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    has anyone seen the mitosis practical come up? if so which paper?

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    (Original post by Rubyturner94)
    has anyone seen the mitosis practical come up? if so which paper?

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    The unit 3 paper this month! Very little chance it'll come again and I have noticed that if they have asked to describe an experiment in a unit 1 paper its highly unlikely they'll ask to describe a practical in the unit 2 paper. Unit 1 they asked a 5 mark DCPIP question, so highly unlikely a five or more mark practical question can come.
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    (Original post by StUdEnTIGCSE)
    The unit 3 paper this month! Very little chance it'll come again and I have noticed that if they have asked to describe an experiment in a unit 1 paper its highly unlikely they'll ask to describe a practical in the unit 2 paper. Unit 1 they asked a 5 mark DCPIP question, so highly unlikely a five or more mark practical question can come.
    oh i would prefered it if they did
    that means they will probabaly ask alot of questions on reliability and validity in the next paper

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    (Original post by Rubyturner94)
    cutting root tip- could cut and harm self-cut downwards on a tile when cutting the root tip
    acid-could hurt/damage eyes-corrosive- wear goggles
    cant think of anymore :/
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    Thanks!
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    June 2012 was so horrible...
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    (Original post by justanotherindigo)
    Does anyone know the risks associated with the mitosis practical?
    (Original post by Rubyturner94)
    cutting root tip- could cut and harm self-cut downwards on a tile when cutting the root tip
    acid-could hurt/damage eyes-corrosive- wear goggles
    cant think of anymore :/
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    Staining on clothes etc wear a lab coat
    Glasswear- cover slip breaking - taking extra care
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    (Original post by justanotherindigo)
    June 2012 was so horrible...
    it was alot of tables and hsw questions

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    (Original post by yarshad)
    Staining on clothes etc wear a lab coat
    Glasswear- cover slip breaking - taking extra care
    Thanks a lot!

    (Original post by Rubyturner94)
    it was alot of tables and hsw questions

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    I know I hope that this paper isn't as bad!
 
 
 
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