CrazCo Posted December 15, 2009 Share Posted December 15, 2009 What are the chances of the child contracting the following autosomal genetic defect. The child's father gave birth to a son having the defect whilst being with his ex-wife. The child's mother's brother had it. If his mother and father, neither having the defect, mated what would be the chances of the child contracting the defect? I don't know which way to tackle it! Link to comment Share on other sites More sharing options...
Mr Skeptic Posted December 15, 2009 Share Posted December 15, 2009 First: the word autosomal tells you something. As for the child's father giving birth, that seems a little unlikely. Likewise for the child to contract a disease due to his parents mating Now, can you tell if this disease is due to a recessive or dominant gene? Then, from the clues given, who has the genes for this disorder, and how many copies of it? Finally, use a Punnet square. Link to comment Share on other sites More sharing options...
CrazCo Posted December 15, 2009 Author Share Posted December 15, 2009 lol, my bad, his mother I realize the father must be heterozygous but the mother could be either! Link to comment Share on other sites More sharing options...
Mr Skeptic Posted December 15, 2009 Share Posted December 15, 2009 Does the mother have symptoms? Link to comment Share on other sites More sharing options...
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