<span>The best source of stem cells which also minimizes the risk associated with stem cell transplantation</span>  are stem cells preserved from the umbilical cord of the person. <span>Stem cell transplant is the process in which diseased cells are replaced by the stem cells collected at the time of birth from umbilical cord blood or bone marrow.</span>
        
                    
             
        
        
        
The population increases due to the fact that birthrate becomes higher than the death rate. 
        
             
        
        
        
To regulate the condition of the endometrium of the uterus