Conditions caused by faulty genes passed through families, such as cystic fibrosis and sickle cell disease.
Examples: cystic fibrosis (recessive, CFTR gene on chromosome 7), Huntington's disease (dominant, CAG repeats), haemophilia (X-linked recessive) and sickle cell disease (recessive). Many conditions are multifactorial, caused by genes and environment together.
Screening and carrier testing help families plan.
Conditions caused by faulty genes passed through families, such as cystic fibrosis and sickle cell disease.
Inherited Disorders is one of the 54 topics in Genetics. It is rated Beginner, so it suits learners who are starting out in biology. Related topics in this area include Sex-Linked Inheritance, Homozygous and Heterozygous, Dominant and Recessive.
PKU, a recessive condition, is controlled by diet if detected at birth.
Inherited Disorders is a Beginner topic, so no earlier topic is required. Other Beginner topics in Genetics that pair well with it include Heredity, Gene, Allele.
The closest topics to Inherited Disorders are Sex-Linked Inheritance, Homozygous and Heterozygous, Dominant and Recessive, Genetic Counselling. Comparing them side by side is a good way to see how the ideas connect.
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Inherited Disorders. To practise the whole of Genetics, use the Genetics quiz.
Inherited Disorders: Conditions caused by faulty genes passed through families, such as cystic fibrosis and sickle cell disease. Sex-Linked Inheritance: Genes on the X chromosome show different patterns in males and females, as with red-green colour blindness. Read both side by side and note what each one explains.
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Sex-Linked Inheritance and explain the difference aloud. Finally, take the Genetics quiz and come back to this page for any question you miss.
Genes on the X chromosome show different patterns in males and females, as with red-green colour blindness.
🧬 GeneticsHomozygous means two identical alleles for a gene; heterozygous means two different alleles.
🧬 GeneticsA dominant allele shows its effect when present in one copy; a recessive allele only shows when two copies are present.
🧬 GeneticsProfessional guidance that helps families understand inherited disease risk and testing options.
🧬 Genetics