Which of the following is not a necessary component of translation?

• A. DNA polymerase
• B. mRNA
• C. tRNA
• D. Ribosome

Answer: (A)

Verified step by step guidance

1. Understand the process of translation: Translation is the process by which the genetic code carried by mRNA is decoded to produce a specific sequence of amino acids in a polypeptide chain. It occurs in the ribosome.
2. Identify the components involved in translation: The key components required for translation include mRNA, tRNA, and ribosomes. mRNA carries the genetic information from DNA, tRNA brings the appropriate amino acids, and ribosomes facilitate the assembly of amino acids into proteins.
3. Recognize the role of mRNA: mRNA (messenger RNA) is crucial as it provides the template that dictates the order of amino acids in the protein being synthesized.
4. Understand the function of tRNA: tRNA (transfer RNA) is responsible for bringing amino acids to the ribosome and matching them to the codons on the mRNA strand through its anticodon region.
5. Clarify the role of DNA polymerase: DNA polymerase is an enzyme involved in DNA replication, not translation. It synthesizes DNA from a DNA template, which is unrelated to the process of translating mRNA into proteins.