In a mapping experiment with three genes,which phenotype should occur most often in the F₂ offspring?
A) parental phenotypes
B) phenotypes of individuals with single crossover events
C) phenotypes of individuals with double crossover events
D) All of these choices should be equal in the F₂ generation.

Question

In a mapping experiment with three genes,which phenotype should occur most often in the F₂ offspring?
A) parental phenotypes
B) phenotypes of individuals with single crossover events
C) phenotypes of individuals with double crossover events
D) All of these choices should be equal in the F₂ generation.

Quizplus · Accepted Answer

Parental phenotypes should occur most often in the F₂ offspring because they are the most common outcome of a normal Mendelian inheritance with no crossovers occurring. Single and double crossover events, while possible, are less likely to occur and therefore should be observed at lower frequencies in the F₂ generation.

In a Mapping Experiment with Three Genes,which Phenotype Should Occur