How is translation initiated?Two ribosomal subunits bind to the DNA sequence.DNA helicase binds to the origins of replication.RNA polymerase binds to the promoter sequence.Two ribosomal subunits bind to the mRNA transcript.

Translation is initiated in the following steps:

1. The first step in translation is the binding of the smaller ribosomal subunit to the mRNA transcript. This is guided by the ribosome recognizing and binding to a specific sequence on the mRNA called the ribosome binding site or the Shine-Dalgarno sequence in prokaryotes.

2. The initiator tRNA molecule, carrying the amino acid methionine, binds to the start codon (AUG) on the mRNA transcript. This is facilitated by several initiation factors.

3. The larger ribosomal subunit then binds to the smaller one to form the complete initiation complex, ready for the elongation phase of protein synthesis.

Note: Translation occurs on mRNA, not DNA. The steps you mentioned about DNA helicase and RNA polymerase are part of DNA replication and transcription respectively, not translation.

Translation is initiated in the following steps:

1. The first step in translation is the binding of a small ribosomal subunit to the mRNA. This is facilitated by initiation factors that help in the recruitment of the small ribosomal subunit to the mRNA.

2. The small ribosomal subunit then scans the mRNA for the start codon (AUG). The start codon is recognized by the anticodon of the initiator tRNA molecule.

3. Once the start codon is recognized, the large ribosomal subunit associates with the small subunit to form the complete initiation complex. This is again facilitated by initiation factors.

4. The ribosome then begins to move along the mRNA, decoding its genetic information and synthesizing the corresponding polypeptide chain. This process is known as elongation.

5. The process of translation is terminated when a stop codon is encountered. The newly synthesized polypeptide is then released from the ribosome, and the ribosome dissociates into its large and small subunits.

Note: The process of translation is not initiated by the binding of ribosomal subunits to the DNA sequence or by the binding of DNA helicase to the origins of replication. These are steps in the process of DNA replication, not translation. Similarly, the binding of RNA polymerase to the promoter sequence is a step in transcription, not translation.