Lecture notes in Microbiology

Prokaryotes Vs Eukaryotes: (Similarities and Differences Between Prokaryotes & Eukaryotes)

Difference between Prokaryotes and Eukaryotes

.Prokaryotes and Eukaryotes are the two fundamental or basic classes of cells. They are mainly distinguished by their size and internal structures. The existence of two classes of cells without any intermediate type represents one of the most fundamental evolutionary separations in the living world. Prokaryotes are structurally and evolutionarily more primitive to eukaryotes. Even though they are two separate classes of living organisms, they share many common characteristics. The shared properties reflect the fact that eukaryotic cells most certainly evolved from prokaryotic ancestors.

Shared common characters of prokaryotes and eukaryotes are as follows:

(1).   Cellular contents in both prokaryotes and eukaryotes are limited by plasma membrane

(2).   In both groups, plasma membrane composed of lipid bilayer with intermittent protein molecules

(3).   DNA is the genetic information carrier in both the groups

(4).   Chemical composition of nucleic acids (DNA and RNA), their structure and their organization are similar in both groups

(5).  Even though the mechanism slightly varies, the process of transcription, translation and DNA replication occurs in both prokaryotes and eukaryotes

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