Protein Synthesis Practice Quiz: Transcription and Translation

In a eukaryotic cell, where does translation take place?

• Nucleus

• Mitochondria

• Ribosomes

• Golgi complex

The genetic code is NOT described as "ambiguous" based on the sources because:

• Each codon codes for multiple different amino acids.

• Some amino acids are coded by more than one codon.

• Each specific codon codes for only one specific amino acid or one specific stop signal.

• It is the same in all known organisms

What type of 5-carbon sugar is found in the nucleotides of DNA?

• Ribose

• Deoxyribose

• Glucose

• Sucrose

Where does the process of transcription primarily occur in a eukaryotic cell?

• Cytoplasm

• Ribosome

• Nucleus

• Golgi apparatus

RNA is generally described structurally as being:

• Double-stranded

• Triple-stranded

• Single-stranded

• Circular

What happens when a ribosome encounters a stop codon (UAA, UAG, or UGA) during translation?

• It adds a specific stop amino acid.

• It continues to the end of the mRNA molecule.

• It binds to a tRNA with a stop anticodon.

• It releases the completed polypeptide chain.

Ribosomes, the cellular machinery where translation takes place, are composed of ribosomal RNA (rRNA) and:

• DNA

• Proteins

• Lipids

• Carbohydrates

The overall flow of genetic information in a cell, as described by the sources, is generally:

• Protein -> RNA -> DNA

• RNA -> DNA -> Protein

• DNA -> Protein -> RNA

• DNA -> RNA -> Protein

Using the provided codon chart, if the mRNA codon is 5'-ACC-3', which amino acid does it code for?

• Asparagine (Asn)

• Threonine (Thr)

• Serine (Ser)

• Proline (Pro)

What type of molecule is responsible for bringing the correct amino acids to the ribosome during protein construction?

• mRNA

• rRNA

• tRNA

• DNA