<prompt> Brittle bone disease is ?Osteogenesis imperfectaOsteopetrosisPagets diseaseOsteoporosis  <response>: Ans. A:Osteogenesis imperfecta Osteopetrosis is also known as Marble bone disease or Albers-Schonberg disease. Pagets disease is known as Osteitis deformans. Osteogenesis imperfecta is known as Brittle bone disease. Osteoporosis is known as Fragile bone disease. 