Which Feature is Unique to Some Eukaryotic Cells and Never Seen in Prokaryotic Cells?

What is the unique feature found in some eukaryotic cells that is absent in prokaryotic cells?

Final Answer: Eukaryotic cells are unique in having a true nucleus that isolates and protects their genetic information, a feature absent in prokaryotic cells.

Explanation

The feature that is unique to some eukaryotic cells and never seen in prokaryotic cells is the presence of a nucleus where the genetic information is stored. In eukaryotic cells, genetic information is produced, replicated, and stored within the nucleus. The nuclear envelope isolates and protects a eukaryotic cell's DNA from various molecules that could accidentally damage its structure or interfere with its processing. In contrast, the genetic information in prokaryotic cells is contained within a region called the nucleoid, which is not a true nucleus as it is not separated from the rest of the cell by a nuclear envelope.
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