Three stages of mitosis in a human
cell; chromosomes are stained blue.
@ Laura Trinkle-Mulcahy, Wellcome Images.
Prokaryotic and eukaryotic cells, mitosis, meiosis, cell cycle, membranes, organization and substructures
Who hasn't heard of "Dolly the Sheep?" So, what is cloning? Why is it important? Joseph G. Marx, PhD, provides answers these and other questions.
Stem CellsSlide Set
Learn about the different kinds and functions of stem cells, and about the medical possibilities and controversies surrounding stem cell research.
The Structure of CellsSlide Set
Each cell, whether prokaryotic or eukarotic, contains a structural, functional and biological purpose. Discover more about the structure of cells.