Gabe's grandfather told him that when he was growing up, a "milkman" would deliver glass bottles of milk to his family’s doorstep. Today, milk is not available in glass bottles. Gabe explains to him that light destroys the in milk, so milk is now stored in opaque containers to help preserve the vitamin.

Select the correct answer. 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