Which statement about euchromatin is true?

Which statement about euchromatin is true?

• A. It Is Transcriptionally Active
• B. It Is Transcriptionally Inactive
• C. It Is Highly Condensed
• D. It Is Found Only In The Nucleus

Answer: (A)

Euchromatin is the open, less condensed form of chromatin that makes genes accessible to the transcription machinery. Because its DNA is not tightly packed, RNA polymerase and transcription factors can bind promoters and initiate transcription, so euchromatin is transcriptionally active. This contrasts with the highly condensed heterochromatin, which is generally transcriptionally inactive. While chromatin is located in the nucleus, the key point for euchromatin is its accessible, active state that supports gene expression.

Euchromatin is the open, less condensed form of chromatin that makes genes accessible to the transcription machinery. Because its DNA is not tightly packed, RNA polymerase and transcription factors can bind promoters and initiate transcription, so euchromatin is transcriptionally active. This contrasts with the highly condensed heterochromatin, which is generally transcriptionally inactive. While chromatin is located in the nucleus, the key point for euchromatin is its accessible, active state that supports gene expression.