Transcription begins when the enzyme binds to the1 pointterminator on DNAinitiator on DNApromoter on DNApromoter on RNAA "stop" signal at the end of a gene that causes the completed mRNA to drop off the gene.1 pointterminator on DNAinitiator on DNApromoter on DNAterminator on RNA

Question 16Which of the following statements about transcription are true.1 pointSynthesis proceeds in a unidirectional manner. Terminates when polymerase stumbles upon a stop signal.The ability of RNAP to bind to a promoter site can be either enhanced or precluded by transcription factors.Termination of transcription is the same for both prokaryotes and eukaryotes.Transcription is initiated by the binding of a messenger RNA molecule to a promoter site, which then unwinds the double helix at that point and begins synthesis.

Initiation of transcription occurs at:Group of answer choicesThe initiator region called the Shine-Dalgarno sequenceSpecific sequences called promotersSites called origin of replicationRandom points in a DNA molecule

The sequences of DNA that direct the RNA polymerase to the proper initiation site for transcription are:Group of answer choicesenhancersoperatorspromotersintronsrho sequences

The nucleotide position on the promoter where RNA polymerase begins synthesis of RNA.Group of answer choicesTATA boxA siteexoncodonintronstart pointNext

Which of the following events occurs during transcription?View Available Hint(s)for Part AThe message in mRNA is translated into a protein.Those segments of the RNA strand that do not actually code for the protein are removed.A molecule of RNA is formed based on the sequence of nucleotides in DNA.A cap is added to the RNA molecule.mRNA binds to a ribosome in the cytoplasm.