Protein Synthesis: Transcription and Translation Overview

What is the primary function of nucleotides?

• To form the cell membrane

• To act as enzymes in metabolic reactions

• To code for specific amino acids

• To provide energy to cells

Which nitrogenous base is found in RNA but not in DNA?

• Uracil

• Adenine

• Cytosine

• Thymine

What is the structure of DNA described as?

• Quadruple helix

• Double helix

• Triple helix

• Single helix

What sugar is found in RNA?

• Fructose

• Deoxyribose

• Ribose

• Glucose

Which of the following is not a function of DNA?

• Creating amino acids directly

• Transportation

• Replication

• Gene expression

What is the main role of mRNA in protein synthesis?

• To bind to the ribosome and start the translation process

• To carry the DNA message from the nucleus to the ribosome

• To transport amino acids to the ribosome

• To create the structure of the ribosome

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

• Ligase

• Helicase

• RNA polymerase

• DNA polymerase

What is the function of rRNA?

• To create the structure of the ribosome

• To carry messages from DNA

• To transfer amino acids

• To replicate DNA

Which type of RNA decodes the nucleotide sequence into amino acids?

• DNA

• tRNA

• rRNA

• mRNA

What does a codon code for?

• A phosphate group

• A sugar molecule

• An amino acid

• A nucleotide