According to hubel and wiesel, ____ cells receive input from neural cells projected from the thalamus and then fire in response
to lines of particular orientations and positions in the receptive field. these cells differ from one another in that each cell responses only to a specific line orientation.
Pp is the genotype because you know purple must have a gene of purple, which it says is dominant. If the white is recessive, the purple with dominate the white.