What is the first step in the process of making proteins?

• Translation

• Transcription

• Replication

• Mitosis

Which enzyme is responsible for unzipping DNA and assembling RNA nucleotides?

• Ligase

• DNA polymerase

• RNA polymerase

• Helicase

What base does RNA use instead of Thymine?

• Guanine

• Uracil

• Cytosine

• Adenine

Approximately what percentage of DNA codes for proteins?

• 25%

• 2%

• 10%

• 50%

What is the purpose of mRNA in protein synthesis?

• To carry amino acids

• To carry the protein code from the nucleus to the cytoplasm

• To replicate DNA

• To form the ribosomes

What is the role of tRNA in protein synthesis?

• To unzip DNA

• To transfer amino acids to ribosomes

• To transcribe mRNA

• To replicate DNA

Where does translation occur within a cell?

• Nucleus

• Cytoplasm

• Golgi apparatus

• Mitochondria

What is the start codon for protein synthesis?

• UAA

• GGC

• CCC

• AUG

Which amino acid does the codon 'AUG' code for?

• Lysine

• Proline

• Glycine

• Methionine

What does a 'stop' codon in mRNA signify?

• The start of protein synthesis

• The addition of an amino acid

• The end of protein synthesis

• The replication of DNA