The double-disc collection Neil Sedaka Sings the Hits is a comprehensive chronicle of Sedaka's hit-making stint at RCA, from his first hit in 1958 (The Diary) to his last recordings for the label in the late '60s.
The nucleus is particularly important among eukaryotic organelles because it is the location of a cell's DNA. Two other critical organelles are mitochondria and chloroplasts, which play important roles in energy conversion and are thought to have their evolutionary origins as simple single-celled organisms.
In eukaryotic cells, like in the maize cell shown here, DNA is located in the nucleus, the mitochondria and the chloroplasts (occuring only in plants and some protists). 1  The nucleus contains most DNA. 2  Mitochondria contain a relatively small amount of DNA tha is arranged in circular molecules.