Although terminally differentiated cells do not divide, the nuclei in these cells are still the site of important functions such as gene expression and regulation. The nucleus contains the genetic material, including DNA, which serves as the instructions for protein synthesis and cellular function. The DNA in the nucleus undergoes transcription to produce messenger RNA (mRNA), which is then translated into proteins in the cytoplasm. This process is critical for maintaining the cell's specific structure and function. Additionally, the nucleus houses various proteins and enzymes involved in DNA repair, replication, and epigenetic regulation.
