Inherited Disorders & Embryo Screening

• What is polydactyly? 

  A condition in which an individual can be born with extra fingers or toes 
• Polydactyly is an example of an 'inherited disease', what does this mean? 

  It can be inherited from an individual's parents
• Is polydactyly caused by a dominant or a recessive allele? 

  Dominant 
• 75%

  
• Is cystic fibrosis a dominant or a recessive genetic disorder? 

  Recessive 
• Which part of a human body cell is affected by cystic fibrosis?

  Cell membrane 
• Which of the following inherited disorders requires a person to inherit two faulty alleles from their parents?

  Cystic fibrosis 
• Cystic fibrosis is an inherited condition that causes:

  Thick, sticky mucus to build up in the lungs and digestive system