Xist Isــــــــــــــــــــــــــ

question 5

Multiple Choice

Xist isــــــــــــــــــــــــــ .

• A)a gene encoding an untranslated RNA involved in X-inactivation
• B)the heterochromatin of inactivated X chromosomes
• C)is a gene that is only found on active X chromosomes
• D)helps inactivate the X chromosome of males

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