Presentation on theme: "X-Linked Conditions: Case Scenarios"— Presentation transcript:
1 X-Linked Conditions: Case Scenarios This PowerPoint file contains a number of slides that may be useful for teaching of genetics concepts.You may use these slides and their contents for non-commercial educational purposes.This presentation includes:A Duchenne muscular dystrophy pedigree showing X-linked inheritanceA pedigree used to assess risk of DMD in offspringA DMD case scenario.
2 DMD PedigreeThe X chromosome carrying the disease-causing mutation can be tracked through the family
3 “Will I have a boy with Duchenne Muscular Dystrophy?”
4 Jason’s family treeJason, aged 3 yrs referred to a paediatrician by his GPLater walking than older siblingsDifficulty running and riding tricycleAlways climbs up stairs on all foursJasonRachelTonySusie3.6.95Fay7.1.98