Which characteristic is true for eukaryotic cells?

Eukaryotic cells are defined by their complexity and organization, which includes the presence of a true nucleus and various membrane-bound organelles. The true nucleus is a defining feature of eukaryotic cells, as it houses the cell's genetic material (DNA) and separates it from the cytoplasm, allowing for more regulated gene expression and DNA replication processes. Additionally, organelles such as mitochondria, endoplasmic reticulum, and Golgi apparatus perform specific functions that enhance the cell's efficiency and capabilities. This complexity allows eukaryotic cells to carry out a wider range of functions compared to prokaryotic cells, which are generally simpler and do not have a nucleus or organelles.