Fix the grammatical mistakes: Stem cells, coming from the umbilical cord of a mammal, can successfully regenerate tissues destroyed by diseases such as old age detrimental ones.
The stem cells are the cells that are the basis of the new tissue.
The stem cells are the cells that are the basis of the new tissue.
The stem cells are the cells that are the basis of the new tissue.
The stem cells are the cells that are the basis of the new tissue.
The stem cells are the cells that are the basis of the new tissue.
The stem cells are the cells that are the basis of the new tissue.
The stem cells are
The stem cells are not able to regenerate the damaged tissue.
The stem cells are able to regenerate the damaged tissue.
The stem cells are able to regenerate the damaged tissue.
The stem cells are able to regenerate the damaged tissue.
The stem cells are able to regenerate the damaged tissue.
The stem cells are able to regenerate the damaged tissue.
The stem cells are able to regenerate the damaged tissue.
The stem cells are able to regenerate the damaged tissue.
The stem cells