If a man who has one allele for Huntington's disease marries a woman with two normal alleles, which of the following best describes the occurrence of Huntington's disease in their children?

+1 vote

 

  

All their children would have Huntington's disease.

  

Half of their children would be phenotypically normal, and half would develop Huntington's disease.

  

Seventy-five percent of their children would have Huntington's disease.

  

All their children would be phenotypically normal.

 

asked Dec 27, 2012 in Biology by anonymous
    

1 Answer

0 votes

 

Half of their children would be phenotypically normal, and half would develop Huntington's disease.

 

answered Dec 27, 2012 by anonymous

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