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Multiple Choice
Which of the following is not involved in the initiation of translation?
A
tRNA
B
DNA polymerase
C
Ribosomal subunits
D
mRNA
Verified step by step guidance
1
Understand the process of translation initiation: Translation is the process by which ribosomes synthesize proteins using mRNA as a template. The initiation phase involves the assembly of the necessary components to start protein synthesis.
Identify the key components involved in translation initiation: These include mRNA, ribosomal subunits, and tRNA. mRNA provides the template, ribosomal subunits form the site of protein synthesis, and tRNA brings the appropriate amino acids.
Recognize the role of each component: mRNA carries the genetic code from DNA, ribosomal subunits (small and large) come together to form a functional ribosome, and tRNA matches the mRNA codon with the correct amino acid.
Consider the role of DNA polymerase: DNA polymerase is an enzyme involved in DNA replication, not in the process of translation. It synthesizes DNA from a DNA template, which is unrelated to the translation process.
Conclude which component is not involved: Since DNA polymerase is not part of the translation machinery, it is not involved in the initiation of translation. Therefore, DNA polymerase is the correct answer to the question.