to differentiate into the specialized tissues of a whole plant, with the addition of a number of hormones or enzymes. This is an ability known as totipotency.
A callus is often the target of a gene gun for specific DNA insertion experiments.
Callus tissue is of particular use in micropropagation where it can be used to grow genetically identical copies of plants with desirable characteristics.
Discovery of the iPS cell
Expect to solve the problems of ES cells
How to think?
Active factor(protein) in ES cells skin cells
Aug, 2006, Pro. Yamanaka ’s laboratory in Kyoto produced ‘pluripotent cells’
Nov, 2007, the first Human iPS cells
iPS cells are a type of pluripotent stemcell
artificially derived from a differentiated cell,
by inducing a “forced”
A. Limitations
So far we have seen a new approach of using stemcells for targeting cancer site and a new concept of
treatment. However it might seem fascinating, it is important to note that significant impediments remain
before the true potential of this novel therapy can be fully realized. Here in this section we are going to
mainly focus on the limitations of neural stemcells esp
Ⅰ.Outline
1. Definition of Learning disability
The term "Learning Disabilities" usually refers to developmental problems in reading, writing, and arithmetic ―the "three Rs" of the classroom that are essential to learning as well as to everyday functioning.
2. Epidemiology
Prevalence of learning disabilities ranges from 2~10 percent of U.S. school children, with rates for b
Ⅰ.Outline
1. Definition of Learning disability
The term "Learning Disabilities" usually refers to developmental problems in reading, writing, and arithmetic ―the "three Rs" of the classroom that are essential to learning as well as to everyday functioning.
2. Epidemiology
Prevalence of learning disabilities ranges from 2~10 percent of U.S. school children, with rates for b