The following image is a pedigree for a family with the genes for cystic fibrosis, which is an autosomal recessive trait. If the dominant allele is represented by A and the recessive allele is represented by a, what would be a possible genotype and phenotype of individual II.3?

A. Genotype: AA
Phenotype: unaffected

B. Genotype: aa
Phenotype: unaffected

C. Genotype: Aa
Phenotype: affected

D. Genotype: AA
Phenotype: carrier


A. Genotype: AA
Phenotype: unaffected

I hope this helps.