The parents-to-be were shocked when an ultrasound scan done in the second trimester of the pregnancy showed a fetus with obviously broken leg bones and ribs.The doctor diagnosed osteogenesis imperfecta.This is caused by a mutation in a gene that encodes
A) beta globin.
B) alpha globin.
C) a clotting factor.
D) myosin.
E) collagen.

Question

Quizplus · Accepted Answer

Osteogenesis imperfecta is a genetic disorder caused by a mutation in the gene that codes for collagen, a protein that helps to provide structure to bones and other connective tissues in the body. The mutation results in weakened bones that are prone to breaking easily, as well as other symptoms such as short stature and hearing loss. The other choices listed (beta globin, alpha globin, a clotting factor, and myosin) are not associated with this disorder.

The Parents-To-Be Were Shocked When an Ultrasound Scan Done in the Second