Sawaal
9
Q:

Which observation proves that a cell is a eukaryote?

A) It contains DNA B) It contains ribosomes
C) It has a cell membrane D) It has DNA inside a nucleus

Answer:   D) It has DNA inside a nucleus



Explanation:

Eukaryotic cells all have a nucleus. Eukaryotes are organisms that are multicellular, although there are some examples of single cellular eukaryotes. So eukaryotic cells can be either cell with a nucleus or a eukaryotic organism's cell.

The most important feature to judge whether it has nucleus membrane.

And for other choices, they are the common features of eukaryote and prokaryote.

Subject: Biology
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