1. The mesophyll was undifferentiation, without chloroplasts.

2. We hypothesize that the maintenance of undifferentiation in embryonic stem cells by using small molecules can also make the same effects on those pluripotent adult embryonic-like stem cells.

3. Conclusion The ES cells can grow well and maintain in the state of undifferentiation under the conditions.

4. EDAG gene has the activity of malignant transformation and is relative to maintaining undifferentiation of cells.

5. Fathers who were androgyny were involved more than other fathers of sex role types and who was masculinity involved more than femininity and undifferentiation.

6. Among 0%, 2.5%, 5% and 10% groups, 2.5% FBS had profit on spermatogonial cells to grow and form more cell colonies, and profited to keep their undifferentiation state.