Question

What is the type of inheritance pattern for the disorder illustrated in the following diagram?

a) Autosomal Recessive

b) Autosomal Dominant

c) X-linked Recessive

d) X-linked Dominant

Answer 1

The inheritance pattern for the disorder in the diagram is autosomal recessive, indicated by a 3:1 probability of offspring expression with two carrier parents.

Step-by-step explanation:

The type of inheritance pattern for the disorder illustrated in the provided diagram is autosomal recessive. This is evident from the information stating that with two carrier parents there's a 3:1 probability of expression among offspring, which aligns with autosomal recessive inheritance. Individuals with one affected gene and one unaffected gene are carriers and will not display symptoms. Diseases like achondroplastic dwarfism, Marfan syndrome, and Huntington's disease are examples of autosomal dominant disorders, which are expressed even if only one faulty gene is present. In contrast, X-linked inheritance patterns involve genes on the X chromosome and differ depending on the parent's gender and whether the condition is dominant or recessive.