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NEET UG BIOLOGY MCQ: PRINCIPLE OF INHERITANCE AND VARIATION
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Which of the following illustrates pleiotropy?
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Correct option: D
The human cystic fibrosis gene causes many symptoms, from respiratory distress to digestive problems
Option D (The human cystic fibrosis gene causes many symptoms, from respiratory distress to digestive problems) is correct because pleiotropy refers to a single gene affecting multiple phenotypic traits.
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