Heterochromatin Differs from Euchromatin in That Heterochromatin

question 51

Multiple Choice

Heterochromatin differs from euchromatin in that heterochromatin

• A) is transcriptionally active, whereas euchromatin is not.
• B) is not found in Barr bodies.
• C) is transcriptionally inactive.
• D) is the result of the unpacking of euchromatin.
• E) contains DNA with accessible promoters. Heterochromatin is highly condensed chromatin that is transcriptionally inactive, because promoters are inaccessible to RNA polymerase. When it is unpacked, it becomes euchromatin.

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