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I believe my chosen answer is correct, but I'm not entirely positive. Any help is appreciated. The
enzyme glucose-6-phosphate dehydrogenase deficiency (G6PD) is inherited as a recessive gene
on the X chromosome in humans. Below is a pedigree of a family affected by G6PD. X-
represents a mutant X chromosome. What is I-1's genotype? XX. XX- X-X- could be A or B
Solution
G6PD is recessive traits disease and so in I-2 the Male would be having diseased X chromosome
recessive traits now for being disease in II a male must have a single disease X trait for that if
female is homozygous for non disease trait of heterzygous for disease trait in both condition in I
is possible.
So condition A and B both is correct

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I believe my chosen answer is correct, but Im not entirely positiv.pdf

  • 1. I believe my chosen answer is correct, but I'm not entirely positive. Any help is appreciated. The enzyme glucose-6-phosphate dehydrogenase deficiency (G6PD) is inherited as a recessive gene on the X chromosome in humans. Below is a pedigree of a family affected by G6PD. X- represents a mutant X chromosome. What is I-1's genotype? XX. XX- X-X- could be A or B Solution G6PD is recessive traits disease and so in I-2 the Male would be having diseased X chromosome recessive traits now for being disease in II a male must have a single disease X trait for that if female is homozygous for non disease trait of heterzygous for disease trait in both condition in I is possible. So condition A and B both is correct