3 1 3 4 5 You have come across a patient II 1 who expresses what you think is a rare phenotype a dark spot on the bottom of the

Question

3 1 3 4 5 You have come across a patient II 1 who expresses what you think is a rare phenotype a dark spot on the bottom of the foot According to a medical source this phenotype is seen in 1 in every 100 000 000 people in the population The patient provides you with his family history a Which of the following nonexpressing members of the family are certainly carriers of the mutant allele Explain 2 marks b If II 6 and II 7 have another child what are the chances they have a child without a dark spot on the bottom of the foot 1 mark

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