Final answer:
Transcription and DNA replication both occur in the nucleus of eukaryotic cells, while translation takes place at the ribosomes in the cytoplasm.
Step-by-step explanation:
The process of transcription takes place in the nucleus of eukaryotic cells. During transcription, DNA is used as a template to create messenger RNA (mRNA), which is then processed and carried out of the nucleus to the site of translation. Translation, the process of decoding the mRNA to produce a polypeptide chain or protein, occurs at the ribosomes, which can be found either freely in the cytoplasm or attached to the endoplasmic reticulum.
DNA replication also occurs in the nucleus. This is because DNA replication requires access to the DNA strands, which are housed within the nucleus in eukaryotic cells. This process involves copying the cell's entire genome before a cell divides.