Actinomycin D Is Produced by Actinomycetes, and It

Multiple Choice

Actinomycin D is produced by actinomycetes, and it:

A) prevents the mRNA from exiting RNA polymerase
B) prevents binding of RNA polymerase to DNA
C) inhibits transcription in both prokaryotes and eukaryotes
D) binds the beta subunit of RNA polymerase, blocking the exit channel
E) can inhibit translation and replication as well as transcription