A young boy becomes a big brother. He expresses confusion to his parents because his little sister does not have brown eyes like his. Where is the gene for eye color found in a cell? a: on a chromosome in the cytoplasm
b: on a chromosome in the mitochondrion
c: on a chromosome in the nucleus
d: on a chromosome in the vacuole

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.