Which of these genetic disorders have multiple phenotypic expressions being impacted by a change in a single gene?
A single gene is usually seen to exhibit a single phenotypic expression. Pleiotropic genes, however, can impact multiple phenotypic expressions.
Which of these genetic disorders have multiple phenotypic expressions being impacted by a change in a single gene?
A. thalassemia
B. haemophilia
C. phenylketonuria
D. Down’s syndrome
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