What is the inheritance pattern and gene location of cystic fibrosis?

Answer and explanation

Correct answer: D. Autosomal recessive, CFTR gene on chromosome 7

  1. Step 1: Cystic fibrosis is an autosomal recessive disease caused by mutations in the CFTR gene on chromosome 7.
  2. Step 2: A sweat chloride test confirms it.
Answer
Autosomal recessive, CFTR gene on chromosome 7.
Why not the others: The other patterns do not apply.

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