One of the oldest recorded behavior mutants is the waltzer mutation in the mouse.Mutant mice can be observed "dancing" and "head shaking"; some are also deaf.Mice must be homozygous for a mutation to express the trait.Based on this information,the genetic cause of this trait is most likely a(n)________.
A) simple recessive pattern of inheritance
B) multifactor, polygenic pattern of inheritance
C) dominant/recessive pattern typical of other behavioral traits
D) epistatic pattern with incomplete dominance
E) variable gene activity pattern with overdominance causing deafness

Question

Quizplus · Accepted Answer

The fact that mice must be homozygous for the mutation to express the trait suggests a recessive pattern of inheritance. Therefore, Choice A is the best answer. The other choices are unlikely based on the given information.

One of the Oldest Recorded Behavior Mutants Is the Waltzer