A person with hemophilia lacks the pleiotropic gene that codes for the protein called clotting factor VIII. What effects will this have on a person with hemophilia?
A) The person will only have the symptom of lack of blood clotting (bleeding).
B) The person will always have the same symptoms as other hemophiliacs.
C) The person will have many other symptoms in addition to excessive bleeding.
D) The person will always have neurological problems.

Question

Quizplus · Accepted Answer

Hemophilia, caused by the lack of clotting factor VIII, is a pleiotropic disorder, meaning one gene can influence multiple phenotypic traits. While excessive bleeding is the primary symptom, individuals may experience a range of other symptoms due to complications from bleeding, such as joint damage and potential for internal bleeding in various organs. The variability in symptoms among individuals with hemophilia can be due to differences in the severity of the mutation, lifestyle factors, and the presence of other genetic factors that can influence the phenotype.

A Person with Hemophilia Lacks the Pleiotropic Gene That Codes