Possibly: It is estimated that we all carry at least 4 autosomal recessive genes to conditions that may involve metabolic or other problems like cystic fibrosis.Conditions that hide in the recessive state but can be deadly when two carriers produce an affected child. Cousins are less likely than siblings to have defective kids.In many places it is illegal for sibs and cousins to marry for this reason.
Answered 1/23/2014
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