You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of the following glycosaminoglycan contains iduronic acid? and explain in detail?
Option d : Heparin contains iduronic acid Glucuronic acid is the hexuronic acid present in most of the glycosaminoglycans. Iduronic acid is a component of Heparin Dermatan sulfate Heparin and Heparan sulfate both contain N-sulfo glucosamine sugar instead of N-acetyl glucosamine as sugar component. NOTE: Dermatan sulfate is made up of N-acetyl galactosamine + iduronic/glucuronic acid