Which component is essential for the process of translation?

Prepare for the IB Diploma Biology Test. Study with flashcards and multiple choice questions, each question offers hints and explanations. Get ready to ace your exam!

The process of translation is vital for synthesizing proteins based on the genetic code carried by messenger RNA (mRNA). Ribosomes play a central role in this process. They are the molecular machines that facilitate the decoding of mRNA into a polypeptide chain by bringing together transfer RNA (tRNA) molecules that carry amino acids.

During translation, ribosomes read the sequence of codons on the mRNA, and each codon corresponds to a specific amino acid. The ribosome matches the correct tRNA, which has the complementary anticodon, thereby ensuring that the amino acids are added in the correct order to form the growing polypeptide chain. This function is critically important, as the ribosome also catalyzes the peptide bond formation between adjacent amino acids, which ultimately leads to the synthesis of functional proteins.

The other components listed—DNA, RNA polymerase, and ligase—are not directly involved in translation. DNA serves as the template for transcription rather than directly participating in the translation process. RNA polymerase is the enzyme responsible for synthesizing RNA from a DNA template during transcription. Ligase is involved in joining DNA fragments and has a role in DNA replication and repair, but it does not play a part in the translation of m

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