V I .
D I F F E R E N T I A T I O N
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277
F I G . 3. Four sequential photomicrographs of the same melanocyte taken approximately 10 minutes apart. The apparent stability of form is spurious. Compare Fig. 4 .
Phase contrast 400 χ .
considered, however, that the cell is inert. Examination of these mature
cells in tissue culture tends to confirm an impression of immobility.
relatively stationary cell in the sense that the position in space occupied
by the mass of the cell body is only passively shifted. It should not be
D I F F E R E N T I A T I O N
O F V E R T E B R A T E
P I G M E N T
C E L L S
277
F I G . 3. Four sequential photomicrographs of the same melanocyte taken approximately 10 minutes apart. The apparent stability of form is spurious. Compare Fig. 4 .
Phase contrast 400 χ .
considered, however, that the cell is inert. Examination of these mature
cells in tissue culture tends to confirm an impression of immobility.
relatively stationary cell in the sense that the position in space occupied
by the mass of the cell body is only passively shifted. It should not be