Which of the Following Is Not True of X-Inactivation

question 19

Multiple Choice

Which of the following is not true of X-inactivation?

• A)It is necessary for dosage compensation.
• B)It is the cause of calico color in cats.
• C)The mechanism includes transcription of the XIST gene and chromatin remodeling.
• D)The XIST RNA is non-coding.
• E)The master regulatory gene for X-inactivation is sxl or sex-lethal.

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