- Inherited disorders are disorders caused by inheritance of certain alleles that can be passed from parents to offspring.
- Cystic fibrosis: Yes
- AIDS: No
- recessive, never, cell membranes, thick, lungs
- Tick: Polydactyly is an inherited disorder. / If one parent is a carrier of the polydactyly allele, the offspring can inherit the disorder.
- Cross: Polydactyly only affects the toes. / Polydactyly is caused by a recessive allele. / If both parents have polydactyly, the child will always have polydactyly.
- a. Embryonic screening
- Advantage: Allows parents to make informed decisions about the pregnancy or prepare for potential health issues.
- Disadvantage: Can lead to ethical dilemmas, such as selective termination of pregnancies based on genetic traits.
- b. Gene therapy
- Advantage: Has the potential to cure or significantly alleviate genetic disorders by correcting the underlying genetic defect.
- Disadvantage: It is still experimental for many conditions, carries risks like immune reactions or unintended genetic changes, and can be very expensive.
- Punnett Square:
- Top row (Parent 1 alleles): F, F
- Left column (Parent 2 alleles): f, f
- Offspring genotypes (inside squares): Ff, Ff, Ff, Ff
Parent Tip: Review the logic above to help your child master the concept of genetic disorders worksheet.
