Answer :
Pleiotropy is the best term used to describe a situation in which cystic fibrosis affects the lungs, the pancreas, the digestive system, and other organs, resulting in symptoms ranging from breathing difficulties to recurrent infections.
Pleiotropy, as used in genetics, is the expression of many phenotypes by a single gene. Pleiotropy is a term with Greek roots that means "many ways." Phenylketonuria is a condition and a straightforward illustration of a pleiotropy. It is a hereditary and genetic condition brought by the slow metabolism of body cells of the amino acid phenylalanine.
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