Exam 3 pt. 2 Transcription: Bacteria vs. Eukaryotes

According to the table 'Comparison of Transcription in Bacteria Versus Eukaryotes', what is the number of polypeptides encoded per mRNA in eukaryotes?

• Monocistronic or polycistronic

• Exclusively monocistronic

• Exclusively polycistronic

• Monocistronic only

According to the table 'Comparison of Transcription in Bacteria Versus Eukaryotes', which enzyme(s) are involved in strand elongation in bacteria?

• RNA polymerases I, II, or III

• core + σ = holoenzyme

• DNA polymerase

• RNA polymerase II only

According to the table 'Comparison of Transcription in Bacteria Versus Eukaryotes', is the addition of a 5’ cap present in bacteria?

• No

• Yes, always

• Only during replication

• Only in eukaryotes

According to the table 'Comparison of Transcription in Bacteria Versus Eukaryotes', is the addition of a 3’ poly-A tail present in eukaryotes?

• Yes

• No

• Only in bacteria

• Only in prokaryotes

According to the table 'Comparison of Transcription in Bacteria Versus Eukaryotes', is splicing of pre-mRNA present in bacteria?

• Yes

• No

What is the process whereby ribosomes use the genetic information of nucleotide sequences to synthesize polypeptides called?

• Transcription

• Translation

• Replication

• Mutation

Which type of RNA is an integral part of ribosomes?

• Messenger RNA (mRNA)

• Transfer RNA (tRNA)

• Ribosomal RNA (rRNA)

• Small nuclear RNA (snRNA)

Which type of RNA transports amino acids during protein synthesis?

• Messenger RNA (mRNA)

• Transfer RNA (tRNA)

• Ribosomal RNA (rRNA)

• Small nuclear RNA (snRNA)

Messenger RNA (mRNA) carries coded information from ______ to ribosomes.

• DNA

• Mitochondria

• Cell membrane

• Golgi apparatus

The function of the start codon AUG during translation is to:

• initiate protein synthesis by signaling the start of translation

• terminate translation by signaling the end of the protein

• add a methionine amino acid at every codon

• cause the ribosome to detach from the mRNA