In the list definition XML, add a ContentTypeRef element to the ContentTypes element. Set the ID attribute of the ContentTypeRef element to the content type ID of the content type that you want to include on the list.or more information about the ContentTypes element in the list definition schema, see ContentTypes Element (List) . Adding Content Types to an Existing SharePoint List. You can use the SharePoint Foundation object model to add content types to an existing list.
Prokaryotic Cell Structure. Prokaryotic cells are not as complex as eukaryotic cells. They have no true nucleus as the DNA is not contained within a membrane or separated from the rest of the cell, but is coiled up in a region of the cytoplasm called the nucleoid. Prokaryotic organisms have varying cell shapes.
Prokaryotic cells are those cells that do NOT have a nucleus. They mostly include bacteria and archaea. These cells do not have membrane-bound organelles. Eukaryotic cells are those that have a true nucleus. That would include plant, animal, algae, and fungal cells. As you can see, to the left, eukaryotic cells are typically larger than prokaryotic cells.