Editing Stem Cells (section)

== <span style="color: #FFFFFF;">Remembering</span> ==
* '''Stem Cell''' — An undifferentiated cell that can divide to produce more stem cells or differentiate into specialized cells.
* '''The Two Main Types''':
# '''Embryonic Stem Cells (ESC)''' — Taken from early-stage embryos; they are "Pluripotent" (can become **any** cell).
# '''Adult (Somatic) Stem Cells''' — Found in adult tissues; they are "Multipotent" (can become a "Family" of cells, e.g., Blood).
* '''Self-Renewal''' — The ability of a stem cell to divide into "Identical copies" of itself, keeping the "Stock" full.
* '''Differentiation''' — The process of "Specializing" into a specific cell type (e.g., a "Skin stem cell" becoming a "Skin flake").
* '''iPS Cells (Induced Pluripotent Stem Cells)''' — Adult cells that have been "Genetically tricked" back into being embryonic-like stem cells.
* '''Stem Cell Niche''' — The "Environment" or "Home" where stem cells live; it provides the "Signals" that tell them when to sleep and when to work.
* '''Blastocyst''' — The very early embryo (5 days old) from which embryonic stem cells are taken.
* '''Mesenchymal Stem Cells (MSCs)''' — Stem cells found in fat and bone that can become "Bone, Fat, or Cartilage."
* '''Hematopoietic Stem Cells (HSCs)''' — The "Blood-makers" in your bone marrow that produce 2 million red blood cells every second.
* '''Teratoma''' — A "Tumor" made of a "Messy mix" of hair, teeth, and muscle; a "Warning sign" of what happens when stem cells divide without a "Plan."
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