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Discussion in 'DAT Discussions' started by happyasaclam88, Jun 12, 2008.

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  1. happyasaclam88

    happyasaclam88
    7+ Year Member

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    genes M and N are located on different chromosomes, and the probability of crossing over is quite low. If the probability of allele M segregating into a gamete is 1/6 and the probability of allele N is 1/4, what is the probability that both of them sill segregate into the same gamete?
    a. 1/12
    b. 1/4
    c. 5/12
    d. 3/4
    e. 1


    answer is c. the book used the addition rule but to me this seems like you should have to multiply the two probabilities.
    thanks!
     
    #1 happyasaclam88, Jun 12, 2008
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  2. Hugh Mannity

    Hugh Mannity
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    Addition rule would be what is the prob. of one OR the other. You are right that both would be multiplied.
     
    #2 Hugh Mannity, Jun 12, 2008
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