Traits that are controlled by _____ genes are usually "either/or" phenotypes (e.g., being color blind or not being color blind, having a blood clotting disorder or not having a blood clotting disorder).
A) polymorphic
B) mutated
C) multiple
D) single

Question

Traits that are controlled by _____ genes are usually "either/or" phenotypes (e.g., being color blind or not being color blind, having a blood clotting disorder or not having a blood clotting disorder).
A) ​polymorphic
B) ​mutated
C) multiple​
D) ​single

Quizplus · Accepted Answer

Single genes control "either/or" phenotypes, as they only have two possible variations. Polymorphic genes have more than two variations, mutated genes have a variation that differs from the normal version, and multiple genes control traits with more than two variations.

Traits That Are Controlled by _____ Genes Are Usually "Either/or