Home Biology Biotechnology and Its Application Ethical Issues The first clinical gene therapy was given fo…
Biology Biotechnology and Its Application Ethical Issues Single Correct MCQ
Published on: August 14, 2026

The first clinical gene therapy was given for the deficiency of which of the following enzymes?

A
a denosine deaminase (ADA) deficiency
B
tyrosinase deficiency
C
homogentisix acid oxidase deficiency
D
phenylalanine hydroxylase deficiency

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The correct answer is:
A

The first successful clinical gene therapy was performed to treat ADA deficiency, which causes Severe Combined Immunodeficiency (SCID).

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