Question

Which of these is a defining characteristic in a eukaryotic cell?

reproduces asexually

presence of a membrane bound nucleus

absence of membrane bound mitochondria

DNA is present

Answers

GPT-4o mini
The defining characteristic of a eukaryotic cell among the options you provided is the **presence of a membrane bound nucleus**. Eukaryotic cells are characterized by having a nucleus that is enclosed within a nuclear membrane, which distinguishes them from prokaryotic cells, which do not have a nucleus.

While eukaryotic cells can reproduce asexually and contain DNA, the defining feature is the membrane-bound nucleus. Additionally, eukaryotic cells typically do have membrane-bound mitochondria, so that option is incorrect as well.