What r stem cell?
Answer:
One of the human body's master cells, next to the ability to grow into any one of the body's more than 200 cell types.
All stem cell are unspecialized (undifferentiated) cells that are characteristically of one and the same family type (lineage). They retain the fitness to divide throughout life and bequeath rise to cells that can become significantly specialized and take the place of cell that die or are lost.
Stem cells contribute to the body's resources to renew and repair its tissues. Unlike mature cell, which are permanently committed to their outside influence, stem cells can both renew themselves as in good health as create new cell of whatever tissue they belong to (and other tissues).
Bone marrow stem cell, for example, are the most primitive cells within the marrow. From them all the a range of types of blood cells are descended. Bone marrow stem-cell transfusions (or transplants) be originally given to replace various types of blood cell.
Stem cells from bone marrow can also, slightly remarkably, give rise to non-marrow cell. In a 1999 report in the publication Nature, scientists from Boston led by Dr. Louis M. Kunkel reported that they give bone marrow transplants from normal mice to dystrophic mice. Some 12 weeks subsequently about 10% of the muscle fibers within the diseased animals were making the correct form of dystrophin, the protein specifically defective in Duchenne muscular dystrophy. This work suggests that bone marrow stem cell may offer contemporary ways of treating muscular dystrophy (and other non-blood diseases).
cells that can turn into any liberal of cell
Stem cells are cell in your body that own not yet differentiated into specific kind of cells. They hold not "turned off" any section of their genetic coding, unlike specialized cell such as cardiac, muscle, liver cells etc. In common there exist two broad category of stem cells which are embryonic stem cell, derived from blastocysts, which are early stage embryos, and fully fledged stem cells, which can be found throughout the body, but are found within great supply in the bone marrow and the umbilical cord of a newborn. Stem cell are a subject of much research because of their great potential for medical treatment.
stem cells are those cell found in the human body which hold the ability to form any benign of tissues . the umbilical cord is a rich source of stem cells .