When a light is shone in the periphery of the receptive field of an on-center cell,
A) there is an immediate period of inhibition and then a burst of firing when the light is turned off.
B) the firing of the cell is increased until the light is turned off.
C) the firing of the cell is inhibited after the light has been turned off.
D) the cell is silent until the light comes on again.
E) the cell is almost silent until the light comes on again.
Question 2
The pattern called off firing involves a temporary
A) decrease in firing when the stimulus comes on.
B) increase in firing when the stimulus goes off.
C) decrease in firing when the stimulus goes off.
D) both A and B
E) both A and C
General features of a growth factor or hormone signalling pathway that promotes cell division
Examples of cell types derived from ectoderm, mesoderm, and endoderm.
animal cell
Apply light tapotement on the head. Tapping lightly with the fingertips works well for this purpose.
Parts of a Cell
(a) Chromosome painting with five different-colored markers in a normal cell. (b) Painting produces