To explain how cells use DNA to produce proteins, the correct order of steps in the process of protein synthesis is as follows:
- Transcription - The process where a specific segment of DNA is copied into mRNA (messenger RNA) by RNA polymerase.
- RNA Processing - The mRNA undergoes modifications, including the addition of a 5' cap and a poly-A tail, and splicing to remove introns.
- Translation Initiation - The processed mRNA is transported from the nucleus to the ribosome, where it binds to the ribosomal subunits.
- Translation Elongation - tRNA molecules bring amino acids to the ribosome, matching their anticodons with the codons on the mRNA to elongate the protein chain.
- Translation Termination - The process continues until a stop codon is reached on the mRNA, leading to the release of the newly synthesized protein.
Here’s how you can fill in the blanks:
- Transcription
- RNA Processing
- Translation Initiation
- Translation Elongation
- Translation Termination