Eukaryotes: What Are the Differences? Understanding Cells and Cell Membranes. The cell is a fundamental component of our modern definition of life and living. Prokaryotes. Prokaryotes are organisms made up of cells that lack a cell nucleus or any membrane-encased organelles. Eukaryotes. Eukaryotes.

The main difference between prokaryotes and eukaryotes is that eukaryotes contain membrane-bound organelles, and prokaryotes do not. This means that prokaryotes do not have a nucleus; instead, they keep their DNA in a cell region called the nucleoid.

Eukaryotes have an enclosed nucleus, while prokaryote lack membrane-bound organelles. Prokaryotic and eukaryotic cells are the basic units of life on Earth. The basic distinction between prokaryotes and eukaryotes is that prokaryotes lack a membrane-bound nucleus and organelles.

Actually, the differences in genome organization between prokaryotes and eukaryotes are as fundamental (table 1) as those in their ultrastructural characters. The genome of prokaryotes can be characterized by limited size ranging from 600kb to 9.5 Mb (Fonstein & Haselkorn 1995), whereas that of eukaryotes by a signifi-

The main difference between prokaryotic and eukaryotic cells lies in their structure. Prokaryotic cells and eukaryotic cells are the two types of cells that exist on Earth .

Transcription uses one of the two exposed DNA strands as a template; this strand is called the template strand. The RNA product is complementary to the template strand and is almost identical to the other DNA strand, called the nontemplate (or coding) strand. However, there is one important difference: in the newly made RNA, all of the T.