Some viruses that infect E. coli produce an “anti-terminator” protein that causes RNA polymerase to “ignore” the termination signal of one virus gene and continue transcribing right into the next gene. What might this anti-terminator protein do?   A. Bind to DNA, causing a loop that prevents the RNA polymerase from reaching the termination signal in DNA. B. Bind to mRNA to prevent it from complementary base pairing with itself at the terminator signal. C. Bind to the termination factor, keeping it away from ribosomes that reach the stop codon. D. Bind to the polyadenylation signal, preventing the action of the RNAase clipping enzyme.

Q: 5. Consider eukaryotic transcription: a) Draw a eukaryotic gene and label key sequences. (5 points)

A: A eukaryotic gene, consists of a set of sequences that appear in mature mRNA interrupted by introns.…

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Q: Synthesize a Protein 5. Below is a region of a gene. Transcribe the gene into a pre-mRNA strand. DNA…

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A: RNA polymerase is an enzyme that catalyzes the synthesis of RNA from RNA template.

Q: . In bacterial genes, as soon as any partial mRNA transcriptis produced by the RNA polymerase…

A: Messenger RNA (mRNA) molecules carry the coding sequences for macromolecule synthesis.

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A: Ribosomal proteins are made in the cytoplasm and then transported to the nucleus where they are…

Q: 5

A: The correct answer is A.

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Viral Replication

The virus is acellular and considered non-living outside the host cell. The replication of the virus occurs only inside the living cells. Only a few genes are present in the smallest virus, whereas many genes are present in the largest virus. These genes encode specific viral proteins.