Mary met her partner John at a support group for families dealing with color blindness. Mary and John are unaffected but

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Mary Met Her Partner John At A Support Group For Families Dealing With Color Blindness Mary And John Are Unaffected But 1 (39.95 KiB) Viewed 14 times

Mary met her partner John at a support group for families dealing with color blindness. Mary and John are unaffected but both have one brother who is affected. They have no knowledge of other family members. Which of the following is true? O There is a 100% probability that they will have an affected child. O They might both be heterozygotes. Since neither one of them is affected, they are not at risk of having an affected child. O John will not pass a mutant allele to either sons or daughters.