RECITATION 2_PROTEIN SYNTHESIS

What is the first step in protein synthesis?

• Translation

• Replication

• Transcription

• Mutation

Which enzyme is responsible for transcribing DNA into mRNA?

• DNA polymerase

• DNA helicase

• RNA polymerase

• Ligase

What is the function of tRNA in protein synthesis?

• tRNA brings amino acids to the ribosome

• tRNA synthesizes proteins directly

• tRNA decodes the mRNA sequence

• tRNA regulates gene expression

Where does translation occur in the cell?

• Ribosomes

• Golgi apparatus

• Mitochondria

• Nucleus

What is the role of ribosomes in protein synthesis?

• Ribosomes play a crucial role in protein synthesis by facilitating the translation of mRNA into polypeptide chains.

• Ribosomes are responsible for DNA replication

• Ribosomes store genetic information

• Ribosomes help in cell division

How many nucleotides make up a codon in the genetic code?

• 1

• 4

• 3

• 6

What is the start codon in the genetic code?

• UAC

• UAA

• AUG

• UAG

What is the anticodon of a tRNA molecule?

• A type of protein

• Sequence of three nucleotides

• A specific gene sequence

• A chemical compound

What is the final product of protein synthesis?

• polypeptide chain or protein

• carbohydrate

• nucleotide

• amino acid

Explain the difference between transcription and translation in protein synthesis.

• Transcription copies DNA into mRNA, while translation decodes mRNA to build a protein.

• Transcription builds proteins directly from DNA, while translation copies DNA into mRNA.

• Transcription decodes DNA into mRNA, while translation copies mRNA to build a protein.

• Transcription and translation are the same process in protein synthesis.