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Multiple Choice
Which statement accurately describes a process that occurs during translation in protein synthesis?
A
A tRNA molecule pairs its anticodon with a complementary codon on mRNA.
B
RNA polymerase binds to the promoter region of DNA.
C
DNA polymerase synthesizes a new strand of DNA.
D
The nuclear envelope breaks down to allow chromosome separation.
Verified step by step guidance
1
Understand the context of the question: Translation is a step in protein synthesis where the genetic code carried by mRNA is used to assemble a protein. This process occurs in the ribosome and involves tRNA molecules.
Identify the key players in translation: mRNA (messenger RNA) carries the codons, tRNA (transfer RNA) carries amino acids and has anticodons that pair with mRNA codons, and ribosomes facilitate the process.
Focus on the correct statement: During translation, a tRNA molecule pairs its anticodon with a complementary codon on the mRNA strand. This pairing ensures that the correct amino acid is added to the growing polypeptide chain.
Eliminate incorrect options: RNA polymerase is involved in transcription, not translation. DNA polymerase is involved in DNA replication, not protein synthesis. The nuclear envelope breaking down is related to mitosis, not translation.
Conclude that the accurate description of translation is the pairing of tRNA anticodons with mRNA codons, which is essential for the synthesis of proteins.