B) Eukaryotic cell
This is because the nucleus is like the information storage of a cell! It contains the cell DNA!
Presence of a nucleus.
Presence of nucleus eukaryotic cells always have a nucleus prokaryotic never does
Yes, a lettuce leaf cell does have a nucleus. As a plant cell, it contains a nucleus that houses its genetic material and regulates cellular activities. The presence of a nucleus is a characteristic feature of eukaryotic cells, which include both plant and animal cells.
Not all cells have a nucleus. Biology breaks cell types into eukaryotic(those with a defined nucleus) and prokaryotic (those with no defined nucleus). You may have heard of chromatin and DNA. You don't need a nucleus to have DNA.
Robert Brown in 1831. Hope this helps! -Zoey Brown
If an organism's cells contain a nucleus that is enclosed by the nuclear envelope, which contains the genetic material, this proves it is a eukaryote. The presence of a nucleus gives eukaryotes their name, which comes from the Greek ευ.
The presence of membrane-bound organelles, such as the nucleus, mitochondria, and endoplasmic reticulum, would provide the best evidence that a cell is eukaryotic. Prokaryotic cells lack membrane-bound organelles and have a simpler internal structure compared to eukaryotic cells.
nuclei
The nucleus of the cell contains the genome.
Robert Brown's discovery of the cell nucleus in 1831 contributed to the cell theory by elucidating the presence of a central structure within cells. This observation further supported the idea that cells are fundamental units of life and laid the foundation for the understanding of cell structure and function.
Difference arises between well developed nucleus & less developed nucleus. The prokaryotes have well developed nucleus while the eukaryotes have advanced nucleus with nuclear membrane & nucleolus.