Indipendent Learning Centre

• MATH MHF4UJ

• 2.1.7 Practice: Protein Structure, Function, and Synth esis Practice AP Biology Points Possible:25 Name: Myungha Song Date: 1. Duchenne muscular dystrophy (DMD) is a degenerative disease that affects primarily mal e children of mothers with a family history of the disease. Affected children do not produce th e muscle protein dystrophin, which provides structural support for muscle cells. Absence of t his protein leads to weakening of the cell membrane, loss of homeostasis, and eventually cel l death.Explain how this disease is transmitted from a mother to her son. Using the following diagram, describe the molecular events occurring in cells of people not affected by this disea se that lead to synthesis of the normal dystrophin protein. Describe a possible mechanism th at may result in the symptoms associated with DMD. (5 points) The genetic pattern is sex-linked recessive inheritance, and about one-third occurs in boys d ue to mutations, but rarely in girls. The gene locus is p21 of the X chromosome, and it is cau sed by the deficiency of a protei