Expression of ________ would inhibit X-chromosome inactivation.

Question

Quizplus · Accepted Answer

Tsix (antisense transcript to Xist) regulates X-chromosome inactivation by inhibiting the Xist gene. Therefore, expression of Tsix would inhibit X-chromosome inactivation. A, Xic (X-inactivation center), is the region responsible for controlling X-chromosome inactivation. B, Xist (X-inactive specific transcript), is the gene responsible for initiating X-chromosome inactivation. D is incorrect because Xic and Xist are genes involved in X-chromosome inactivation, and the expression of Xist (but not Xic) is required for X-chromosome inactivation. E is incorrect because at least one answer is correct.

Expression of ________ Would Inhibit X-Chromosome Inactivation