between days 14 and 30 , when maximum rates of macroscopic growth of the heterotransplants were achieved , the cytokinetic features of the xenografts had stabilized and were characterized by the presence of a small portion of mouse cells and a prominent tumor cell population , most cells being in the g1 phase and a smaller number passing through the s and ( g2 + m ) phases .
C0007634
cells
C0079395
g1 phase