Answer: Proteins are translated from mRNA after mRNA is produced from DNA from transcription.
Step-by-step explanation:
1. DNA undergoes transcription to produce RNA by RNA polymerase inside the nucleus.
2. This RNA transcript is spliced to remove exons, producing mRNA (messenger RNA).
3. mRNA goes out of the nucleus. Ribosomes (free or on the endoplasmic reticulum) read the mRNA codon to join amino acids, producing proteins by the process of translation.