In addition to the nucleus, eukaryotic cells may contain several other types of organelles, which may include mitochondria, chloroplasts, the endoplasmic reticulum, the Golgi apparatus ...

Eukaryotic cell DNA in a nucleus, plasmids are found in a few simple eukaryotic organisms. Prokaryotic cell DNA is a single molecule, found free in the cytoplasm; additional DNA is found on one or ...

(a) Within this simple eukaryotic transcriptional unit, a simple core promoter (TATA), an upstream activator sequence (UAS), and a silencer element are spaced within 100 to 200 base pairs of the ...