Robuta

https://pmc.ncbi.nlm.nih.gov/articles/PMC51885/ Mutation in a gene for type I procollagen (COL1A2) in a woman with postmenopausal osteoporosis:... Mutations in the two genes for type I collagen (COL1A1 or COL1A2) cause osteogenesis imperfecta (OI), a heritable disease characterized by moderate to extreme... https://pubmed.ncbi.nlm.nih.gov/9443882/ Analysis of the COL1A1 and COL1A2 genes by PCR amplification and scanning by conformation-sensitive...