Thursday, March 10, 2011

What are the chances of a person with the disease passing the disease to their offspring (include possible scenarios)?

There are many different ways that two adults could produce offspring that are carriers, normal, or have Cystic Fibrosis.  Since Cystic Fibrosis is a recessive disorder both parents would have to be carriers or have the disease in order for there to be a chance of passing the disorder onto their offspring.  Below are a couple scenarios…

Normal mother x Normal father       Carrier Mother x Normal father        Carrier mother x Carrier father
              (All normal)                               (50% normal, 50% carrier)              (25% normal, 50% carrier, 25% have CF)

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2 comments:

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  2. The very last father under (normal mother x normal father) and the (25% have CF) under the all normal go with the last punnet square :)

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