| In mammals, germ cells undergo a small number of proliferative mitotic cell divisions as they migrate to the gonad. |
| The mass was excised and was characterized histologically as another proliferative cystic sebaceous tumor. |
| In other types, such as the blue nevus, proliferative tissue is buried deep within the dermis, the lower layer of the skin. |
| This suggests that the c-erb-b2 oncoprotein may possibly be involved in proliferative responses of pancreatic epithelium. |
| They subsequently determined that cells within the ribbon were dividing, implying that they were part of a region of proliferative stem cells. |
| At this time, expression within the eyes and tectum becomes restricted to cells within the proliferative germinal zones. |
