Understanding Protein Synthesis from DNA

What is the role of DNA in determining traits such as eye color?

• It changes pigments in the eyes over time.

• It codes for proteins that produce pigments.

• It has no role in determining eye color.

• It provides pigments directly to the eyes.

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What does protein synthesis mean?

• The removal of proteins from cells

• Breaking down proteins into amino acids

• The process of making proteins

• The synthesis of DNA from proteins

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Where does transcription occur within a cell?

• Outside the cell

• In the cytoplasm

• In the ribosome

• In the nucleus

What is the role of mRNA in protein synthesis?

• It transfers DNA out of the nucleus.

• It helps in digesting proteins.

• It carries amino acids to the ribosome.

• It carries the genetic code from DNA to the ribosome.

What is a codon?

• A special type of tRNA

• A sequence of three mRNA bases

• A sequence of three DNA bases

• A type of protein

Which molecule carries amino acids to the ribosome?

• mRNA

• DNA

• rRNA

• tRNA

What is the first amino acid in a newly synthesized protein?

• Methionine

• Glycine

• Proline

• Leucine

What does a stop codon do during protein synthesis?

• Signals the end of protein synthesis

• Codes for additional amino acids

• Duplicates the protein chain

• Starts the synthesis process

Which RNA is responsible for building proteins?

• mRNA

• tRNA

• rRNA

• All of the above

How are amino acids linked together to form a protein?

• Covalent bonds

• Peptide bonds

• Hydrogen bonds

• Ionic bonds