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Cystic fibrosis is
  • a)
    Sex-linked recessive disorder
  • b)
    Autosomal dominant disorder
  • c)
    Autosomal recessive disorder
  • d)
    Sex-linked dominant disorder
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Cystic fibrosis isa)Sex-linked recessive disorderb)Autosomal dominant ...
The correct answer is 3. Cystic fibrosis is an autosomal recessive disorder.
Autosomal recessive disorders are caused by the inheritance of two copies of a mutated gene, one from each parent. In the case of cystic fibrosis, it is caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene.
To develop cystic fibrosis, an individual must inherit two copies of the mutated CFTR gene, one from each parent. If a person inherits only one copy of the mutated gene, they are considered carriers of the condition but do not typically exhibit symptoms.
Sex-linked disorders, on the other hand, are caused by mutations in genes located on the sex chromosomes (X or Y). Cystic fibrosis is not a sex-linked disorder and is not associated with the sex chromosomes.
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Cystic fibrosis isa)Sex-linked recessive disorderb)Autosomal dominant disorderc)Autosomal recessive disorderd)Sex-linked dominant disorderCorrect answer is option 'C'. Can you explain this answer?
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