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TPR Biology Passage 64 questions: Inheritance

Discussion in 'MCAT Study Question Q&A' started by tshank, Sep 26, 2014.

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  1. tshank

    tshank 2+ Year Member

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    Jun 3, 2014
    Can anyone help explain this passage and the following questions? I am particularly confused on #'s 4 and 5. Thank you.

    Answers are below, highlight to view:




    1-C
    2-B
    3-C
    4-A
    5-B
    6-C
     

    Attached Files:

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  3. popopopop

    popopopop 5+ Year Member

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    Dec 18, 2011
    DFW/Houston
    Do you know how to solve a pedigree tree? You need to know punnet squares before attempting this question, then it's a matter of pattern recognition(not necessary, but makes things faster) and trial/error.
     
  4. tshank

    tshank 2+ Year Member

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    Jun 3, 2014
    I didn't know how to solve a pedigree tree when I checked out the passage, but I do now.

    Question: Any tricks you have for figuring out right away between autosomal or x-linked? And are we expected to know mitochondrial or not for MCAT?
     
  5. popopopop

    popopopop 5+ Year Member

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    601
    Dec 18, 2011
    DFW/Houston
    I had tons of practice on this when I had genetics, but it's rusty right now. I didn't have a problem with the passage you posted though, and haven't encountered anything harder than this.

    http://www.bogari.net/Bogari/Medical_Genetics_files/3-1 Patterens of Inheritance.pdf

    ^This is a really good summary of some of the shortcuts. No idea on mitochondrial, but I'm sure it'll be mentioned in the passage I guess. I doubt you'll see it.
     
    wuhsabee likes this.
  6. tshank

    tshank 2+ Year Member

    107
    16
    Jun 3, 2014
    Thats the exact slideshow I just went through to learn how to read pedigree's. Thanks!
     

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