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2. (a) Mr and Mrs Smith both have a history of cystic fibrosis in their families Neither of them has cystic fibrosis. Mr and Mrs Smith are concerned that they may have a child with oystio fibrosis Use a genetic diagram to show how they could have a child with cystic fibrosis Use the symbol A for the dominant allele and the symbol a for the recessive ailele.
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2. (a) Mr and Mrs Smith both have a history of cystic fibrosis in their families Neither of them has...
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