How are Prokaryotes Different from Eukaryotes

Question

How are prokaryotes different from eukaryotes?
A) Prokaryotes have no DNA.
B) Prokaryotes have no nucleus separating the DNA from the rest of the cell.
C) Prokaryotes are unicellular, while eukaryotes are multicellular.
D) Prokaryotes cause disease, but eukaryotes don't.

Accepted Answer

Prokaryotes lack a nucleus which means their genetic material is not enclosed in a membrane-bound nucleus like in eukaryotes. Prokaryotes have their DNA located in the cytoplasm instead. 
Option A is incorrect as all living organisms have DNA - it is the genetic material that controls the characteristics of living things.
Option C is incorrect as some eukaryotes are unicellular, such as protozoans (unicellular protists), and some prokaryotes are multicellular, such as cyanobacteria.
Option D is incorrect as both prokaryotes and eukaryotes can cause diseases, but prokaryotes are typically associated with more diseases as a group.