In yeast,the SIR protein complex physically interacts with histones H3 and H4 to cause
A) mRNA folding.
B) transcriptional silencing.
C) transcriptional activation.
D) basal transcription.
E) initiation of replication.

Question

Quizplus · Accepted Answer

The SIR protein complex in yeast is known to promote transcriptional silencing, particularly at telomeres, by physically interacting with histones H3 and H4 and repressing transcription.

In Yeast,the SIR Protein Complex Physically Interacts with Histones H3