If a physician informed you that your speech disorder was the result of problems on chromosomes 4, 7, and 15, what could you rightly conclude that the disorder?
A) It is always classifiable as recessive.
B) It is always classifiable as polygenetic.
C) It is always classifiable as dominant.
D) It is always classifiable as sex-linked.

Question

Quizplus · Accepted Answer

The involvement of multiple chromosomes (4, 7, and 15) in the speech disorder suggests that the condition is polygenic, meaning it is influenced by several genes. Polygenic inheritance involves multiple genes contributing to a single effect, which is the case here with the disorder being linked to problems on multiple chromosomes.

If a Physician Informed You That Your Speech Disorder Was