AP BIOLOGY

Detailed explanation-1: -In eukaryotic cells, transcription takes place in the nucleus . During transcription, DNA is used as a template to make a molecule of messenger RNA ( mRNA ). The molecule of mRNA then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs.

Detailed explanation-2: -Ribosomes are the sites of protein synthesis in both prokaryotic and eukaryotic cells.

Detailed explanation-3: -Although it is universally accepted that protein synthesis occurs in the cytoplasm, the possibility that translation can also take place in the nucleus has been hotly debated.

Detailed explanation-4: -Recent studies have shown that proteins synthesis can happen in the cytoplasm, on top of the endoplasmic reticulum, in the mitochondria, and on the mitochondrial membrane. Protein synthesis does not take place in the nucleus.

Detailed explanation-5: -Protein synthesis occurs in cellular structures called ribosomes, found out-side the nucleus. The process by which genetic information is transferred from the nucleus to the ribosomes is called transcription.