<prompt> Collagen affected in Osteogenesis imperfecta -Type IType IIType IIIType IV  <response>: Answer- A. Type IOsteogenesis imperfecta also known as brittle bone disease, or Lobstein syndrome is a congenital bone disorder.People with OI are born with defective connective tissue, or without the ability to make it, usually because of a deficiency of Type-I collagen. 