Principles of Inheritance - Pedigree Analysis, Genetic Disorders

Grade 12 Biology — Principles of Inheritance - Pedigree Analysis, Genetic Disorders: 25 practice questions with instant scoring and explanations.

1. A pedigree chart is used to:
2. In a pedigree, a square represents:
3. In a pedigree, a filled symbol indicates:
4. A horizontal line connecting two individuals in a pedigree represents:
5. A vertical line in a pedigree represents:
6. Cystic fibrosis is inherited as:
7. Huntington's disease is inherited as:
8. Duchenne muscular dystrophy is inherited as:
9. Thalassemia is caused by:
10. Sickle cell anemia is inherited as:
11. In sickle cell disease, the abnormal hemoglobin causes:
12. Albinism is caused by:
13. Phenylketonuria (PKU) is inherited as:
14. Genetic disorders that appear in consecutive generations in a pedigree suggest:
15. When both males and females are equally affected in a pedigree, the disorder is likely:
16. A genetic disorder affecting mainly males in a pedigree suggests:
17. Consanguinity in a pedigree refers to:
18. Leber congenital amaurosis is inherited as:
19. The manifestation of a recessive genetic disorder requires:
20. Achondroplasia (dwarfism) shows which inheritance pattern?
21. A genetic counselor would advise a couple about:
22. If both parents are carriers of a recessive autosomal disorder, the risk of an affected child is:
23. Haemochromatosis is inherited as:
24. A condition affecting multiple family members across generations is most likely:
25. The probability of two carrier parents having three affected children is: