Eukaryotic cells are characterized by which of the following features?

Eukaryotic cells are indeed characterized by having linear DNA molecules that are associated with histone proteins. This is a defining feature of eukaryotes, distinguishing them from prokaryotic cells, which typically contain a single circular DNA molecule that is not associated with histones.

The association of DNA with histone proteins in eukaryotic cells helps in the organization and compaction of the DNA into a structured format known as chromatin. This structural formation is critical for processes such as DNA replication, repair, and gene expression. The presence of histones allows for more complex regulation of gene activity and is essential for the proper division of cells during mitosis and meiosis.

Linear DNA, as opposed to circular DNA, allows for the more intricate packaging found in the multiple chromosomes of eukaryotic organisms. This complexity is fundamental to the function of eukaryotic cells and underpins much of the biological diversity seen in multicellular organisms.