Transcription   A copies of sequences of DNA into an RNA molecule   b occurs in the nucleus of a eukaryotic cell   c is catalyzed by a RNA polymerase   d all of the above

Considering only the listed genetic elements in the figure below, how many different mRNAs and polypeptides can be made from this DNA fragment? Promoter start Codon Transcription terminator STOP Start STOP codon Lodon codon O A. 1 mRNA and 3 polypeptides B. 3 mRNA and 3 polypeptides C. 1 mRNA and 2 polypeptides D. 2 mRNA and 3 polypeptides Promoter Start codon Transcription terminator STOP codon

Which of the following characterize RNA polymerase Il transcriptional termination in eukaryotes? Endonuclease cleavage of the RNA transcript and 5' to 3' exonuclease activity a protein known as Ratl None of the provided answers, transcriptional termination occurs in prokaryotes. Recognition of the transcriptional stop codon by a release factor. Hairpin structure formation on the newly synthesized RNA molecule which disrupts the DNA-RNA hybrid at a poly-U RNA sequence Binding of the Rho protein.

The antibiotic kasugamycin blocks the binding of methionine to tRNA. From this information, you can conclude that kasugamycin prevents: transcription in prokaryotes mRNA-ribosome binding in eukaryotes the synthesis of ribosomes by rRNA in eukaryotes the initiation of the synthesis of a protein in prokaryotes             e. RNA polymerase from binding to a promoter