So too with poo. A poo can take on a variety of appearances and still be considered normal. It can be all manner of shades â from orangey and dark brown to magenta or green from certain veggies or blue from artificially-colored foods and beverages.
Epigenetics is the study of changes in gene activity which are not caused by changes in the DNA sequence. It is the study of gene expression, the way genes bring about their phenotypic effects. These changes in gene activity may stay for the remainder of the cell's life and may also last for many generations of cells, through cell divisions.
Hemopoietic means pertaining to Hematogenesis or hematopoiesis, which mean blood cell formation.