Protein Synthesis

What is the significance of the start codon?

• It signals the beginning of translation.

• It marks the end of transcription.

• It initiates DNA replication.

• It codes for a stop signal.

What is the function of ribosomes in protein synthesis?

• To facilitate the translation of mRNA into a polypeptide chain.

• To synthesize mRNA from DNA.

• To transport amino acids to the ribosome.

• To fold proteins into their functional shapes.

In what process is mRNA synthesized?

• Translation

• Replication

• Transcription

• Translocation

What is the difference between transcription and translation?

• Transcription is the process of synthesizing proteins from DNA, while translation is the process of synthesizing mRNA from proteins.

• Transcription is the process of synthesizing mRNA from DNA, while translation is the process of synthesizing proteins from mRNA.

• Transcription and translation are the same processes that occur in the nucleus.

• Transcription is the process of synthesizing DNA from RNA, while translation is the process of synthesizing mRNA from DNA.

Where is the anticodon located on a tRNA molecule?

• At the bottom of the molecule.

• At the top of the molecule.

• In the middle of the molecule.

• On the side of the molecule.

What is a codon?

• A sequence of three nucleotides on mRNA that codes for a specific amino acid.

• A type of protein that helps in DNA replication.

• A single nucleotide that can code for multiple amino acids.

• A sequence of amino acids that forms a protein.

What is the end product of translation?

• A polypeptide chain (protein).

• A nucleotide sequence.

• A ribosomal RNA molecule.

• An amino acid sequence.

What happens during the elongation phase of translation?

• Amino acids are added one by one to the growing polypeptide chain.

• The ribosome disassembles after protein synthesis is complete.

• mRNA is synthesized from a DNA template.

• Transfer RNA (tRNA) is released from the ribosome.

What process is occurring when mRNA is translated into a protein?

• Transcription

• Replication

• Translation

• Translocation

Where does transcription occur?

• Cytoplasm

• Nucleus

• Ribosome

• Mitochondria