The source of the gene needed for gene therapy treatment of the sex-linked adrenoleukodystrophy (ALD)would be a(n)________ chromosome with a ________ copy of the ALD gene.

Question

Quizplus · Accepted Answer

ALD is an X-linked disorder, meaning the gene is located on the X chromosome. Males only have one X chromosome, and females typically have two, but only one is active in each cell. Therefore, the source of the gene needed for gene therapy treatment of ALD would be a functional gene located on the X chromosome. Choice B is incorrect because the Y chromosome does not carry the ALD gene. Choices C and D are incorrect because a nonfunctional copy of the ALD gene would not be useful for gene therapy treatment.

The Source of the Gene Needed for Gene Therapy Treatment