What is osteogenesis imperfecta? What is it caused by? What is its inheritance pattern?
a) A genetic disorder causing weak bones; caused by a mutation in collagen genes; autosomal dominant inheritance
b) A bacterial infection of the bones; caused by a virus; autosomal recessive inheritance
c) A rare metabolic disorder; caused by excess calcium intake; X-linked inheritance
d) A degenerative joint disease; caused by aging; multifactorial inheritance