What differentiates passive transport from active transport? A. Proteins have a role in passive transport.

B. Molecules move down a concentration gradient during passive transport.

C. Passive transport involves molecules moving across the cell membrane.

D. ATP is needed for passive transport to occur.

Tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d