A woman who is a carrier for colour blindness (X-linked recessive) has children with a man who has normal colour vision. A. What are the genotypes of the man and woman? (2 marks) B. What percentage of their children do you expect to be colour blind? (1 mark) C. What proportion of their children will be carriers of the allele for colour blindness? (1 mark) D. Is it possible for the couple to have a girl who is colour blind? Why or why not? (2 marks)
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A woman who is a carrier for colour blindness (X-linked recessive) has children with a man who has n...
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