BRAINCAKESources of Animal Stem Cells
There are two sources of stem cells in animals: embryonic stem cells and adult stem cells.
Embryonic stem cells are present in the early stages of embryo development and are totipotent.
After about seven days a mass of cells called the blastocyst is formed.
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Key terms in this lesson
- totipotent
- Describes a stem cell that can differentiate into any type of cell, including extra-embryonic tissue.
- pluripotent
- Describes a stem cell that can differentiate into almost any type of cell but not extra-embryonic tissue.
- multipotent
- Describes a stem cell that can only differentiate into a limited range of cell types within a particular tissue.
More in Cell Division
- Stem Cells
- Stem Cell Potency
- Differentiation
- Replacement of Red and White Blood Cells
- Sources of Plant Stem Cells
- Uses of Stem Cells
- Ethics
- Anaphase
All 31 lessons in Cell Division · All OCR AS-level Biology topics