Which of the following is not a characteristic of prokaryotic cells?
A
Small size
B
Circular DNA
C
Lack of membrane-bound organelles
D
Presence of a nucleus
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1
Understand the basic characteristics of prokaryotic cells. Prokaryotic cells are typically small in size, have circular DNA, and lack membrane-bound organelles.
Recognize that prokaryotic cells do not have a nucleus. Instead, their genetic material is located in a region called the nucleoid, which is not enclosed by a membrane.
Compare the characteristics listed in the problem with the known features of prokaryotic cells. Identify which characteristic does not align with the typical features of prokaryotic cells.
Note that the presence of a nucleus is a characteristic of eukaryotic cells, not prokaryotic cells. Eukaryotic cells have a defined nucleus where their genetic material is enclosed by a nuclear membrane.
Conclude that the presence of a nucleus is not a characteristic of prokaryotic cells, making it the correct answer to the problem.