Choose the description below that best matches the current model of RNA polymerase holoenzyme.
A) A core enzyme composed of five polypeptides bound by a transcription factor.
B) A core enzyme composed of five polypeptides bound by ribosomes.
C) A core enzyme composed of five sigma factors bound by a polypeptide chain.
D) An open complex or "bubble" formed by DNA,mRNA,and RNA polymerase.
Correct Answer:
Verified
Q17: Prior to secretion,Gram-negative bacterial proteins are translocated
Q18: The Sec system is used by
A)both Gram-positive
Q20: In _,ribosomes can attach to the mRNA
Q21: In order to add a single amino
Q23: The energy needed for protein synthesis is
Q25: All prokaryotes initiate the synthesis of proteins
Q26: Which of the following is not a
Q27: The stop codons are translated codons; that
Q30: Ribosomes consist of _ separate subunits that
Q32: Aminoacyl-tRNA synthetases catalyze covalent addition of _
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