1 MCQs in Pediatrics for NEET PG
A couple presents for preconception counseling. Both are unaffected carriers of the cystic fibrosis (CF) transmembrane conductance regulator (CFTR) gene mutation. The pedigree shows their carrier status marked as **A**, and the risk marked as **C** indicates the probability of an affected child in each pregnancy. Which of the following best explains why the recurrence risk marked **C** applies to every future pregnancy of this couple, regardless of the outcome of previous pregnancies?
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