Family trees

• Is cystic fibrosis a dominant or recessive condition?

  Recessive
• Which genotypes would result in individual having cystic fibrosis?

  Homozygous recessive
• Which genotypes would result in individual being carrier of cystic fibrosis?

  Heterozygous
• Cystic fibrosis is a recessive condition, so for a child to have the condition they would need to inherit it from both parents.