Course: Science Subtest II
Lesson: Genetics and Evolution
Topic: Inheritance of Traits      Page 5 of 18  

Diagnostic Question with Feedback



4. Hemophilia is a sex-linked recessive disorder. The hemophilia allele is located on the X chromosome (not the Y chromosome.) If a woman who is heterogeneous for hemophilia has children with a man who does not have hemophilia what proportion of their children will be hemophiliacs?

A100%
B50%
C25%
D0%