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    (Original post by -Jaz-)
    type in f215 jan 2011 mark scheme in google - there's a PDF link - i found it yesterday using that
    cant seem to find it. can you pass me the exact link please?
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    what are the chances of module 4 coming up...i cba with it.
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    (Original post by susan23)
    what are the chances of module 4 coming up...i cba with it.
    literally 100%
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    (Original post by arcticwombats)
    what have you all got for an example of succession. do we just learn the one in the text book? (the sand dune one)
    Yup the sand dune one you gotta love the funny names - prickly sandwort!!
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    (Original post by I'mBadAtMaths)
    literally 100%
    what about the human galapogas crap....
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    (Original post by sickofexamz)
    In the heinemann book on 2.1 spread 8, in the process of prophase 1 what does it mean by
    'each pair consists of one maternal and one paternal chromosome'

    From the diagram it seems that each consists of either two maternal or two paternal chromosome, I don't understand!
    Please help!
    Each HOMOLOGOUS PAIR or BIVALENT has a maternal and paternal chromosome. That diagram has included two homologous pairs.
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    (Original post by Hazel92)
    cant seem to find it. can you pass me the exact link please?
    Check page 12
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    Sorry to keep asking but, do you think plant hormones will be a sufficient amount, did it come up in previous years?
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    (Original post by susan23)
    what about the human galapogas crap....
    highly important :lolwut:
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    (Original post by Hazel92)
    cant seem to find it. can you pass me the exact link please?
    http://www.google.co.uk/url?sa=t&sou...Ji4oAVApoJZCSQ
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    (Original post by Tetanus)
    Each HOMOLOGOUS PAIR or BIVALENT has a maternal and paternal chromosome. That diagram has included two homologous pairs.
    But I thought homologous meant the same thing?? I am so confused
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    (Original post by susan23)
    what about the human galapogas crap....
    I don't know susan
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    (Original post by -Jaz-)
    Assumptions:

    1. Very large population
    2. Random mating between individuals
    3. No selection
    4. No random mutation
    5. No genetic drift / migration

    And basically, we assume that there are only 2 alleles, and use the formula

    p^2 + q^2 + 2pq = 1,

    where p = dominant allele and q = recessive allele

    so basically, p^2 = homozygous dominant
    q^2 = homozygous recessive
    and 2pq = heterozygous

    and we use the whole hardy-weinberg equation to work out the percentage of the population with the dominant allele, or recessive allele, or the percentage who are homozygous dominant or recessive, etc.
    This fab! Thank YOu
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    (Original post by Tetanus)
    highly important :lolwut:
    you really think thats coming up??? I thought theres more important things to be tested on!
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    (Original post by Ralphus J)
    what do people think the two 8 markers will be? (theres usually two 8 markers isnt there)?
    I have a big feeling it's either going to be on cloning or actin and myosin
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    (Original post by I'mBadAtMaths)
    I don't know susan
    lol off course you dont
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    (Original post by sickofexamz)
    But I thought homologous meant the same thing?? I am so confused
    A homologous pair is made up two matching chromosomes. One from yo mumma one from yo daddy. They are said to be 'matching' because they contain the same genes, albeit different alleles of that gene. They are not the same.

    On the diagram maternal and paternal chromosomes are shown in different colours but notice that two 'matching' chromosomes have the exact same shape.
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    im off people..... good luck everyone.. we shall meet in the post discussion thread

    good luck
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    (Original post by jetmanchandi)
    I have a big feeling it's either going to be on cloning or actin and myosin
    im hoping sliding filament like you said, and cloning hmmm that would be ok i guess
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    (Original post by jetmanchandi)
    I have a big feeling it's either going to be on cloning or actin and myosin
    I'm thinking (an hoping) that it will be exactly that, sliding filament model FTW!
 
 
 
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