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Homework Help: Genetic sequence multiple choice question

  1. Mar 18, 2015 #1
    1. The problem statement, all variables and given/known data

    5) Examine the following sequence:
    5' GAATTC 3'
    3' CTTAAG 5'
    If this sequence was disgested with an enzyme (ex. ECOri) which cut between the guanine and adenine bases on which would it have?
    A) 3' overhang
    B) Blunt ends
    C) 5' overhang
    D) Any of these
    2. Relevant equations
    3. The attempt at a solution
    I'm doing a little prep-work before tackling this unit in class.
    I honestly do not understand what this questoin means too well(sentence is poorly structured?)
    BUt i think its either A or D. If anyone could enlighten me that would be great(as to what is goign on here)
  2. jcsd
  3. Mar 18, 2015 #2


    Staff: Mentor

  4. Mar 19, 2015 #3


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    Homework Helper
    Gold Member

    The link is necessary knowledge but the answer is perfectly easily deducible just from the information in the question.
    If the enzyme cleaves as stated what structure will you be left with after it has acted and what description does that fit?
  5. Mar 20, 2015 #4
    I believe it is a 5' overhang. I put this answer on my test(exact same questoin for some reason)
    and I got it right. But can it not be a 3' overhang as well?
  6. Mar 20, 2015 #5


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    Homework Helper
    Gold Member

    If you answer my question you will find it helps answer yours.
  7. Mar 20, 2015 #6
    Alright I think i got it now. Thanks for the help!
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