Question

Which of the following, if missing, would usually prevent translation from starting in eukaryotes?

A) mRNA
B) tRNA
C) Ribosome
D) Start codon

Answer 1

Translation in eukaryotes requires mRNA, initiator tRNA, ribosome, and start codon.

Step-by-step explanation:

Initiation of translation in eukaryotes requires the presence of the following:

1. mRNA: The mRNA molecule serves as the template for protein synthesis.
2. Initiator tRNA: The initiator tRNA carries the methionine amino acid to start translation.
3. Ribosome: Both the small and large ribosomal subunits are necessary for the formation of the initiation complex.
4. Start codon: The start codon, usually AUG, denotes the beginning of translation.

In the absence of any of these components, translation cannot begin in eukaryotes.