In: Biology
Matings between two types of guinea pigs with normal phenotypes produce 64 offspring, 11 of which showed a hyperactive behavioral abnormality. The other 53 offspring were behaviorally normal. Assume that the parents were heterozygous. Using a Chi Square test are these results expected from a Mendelian inheritance perspective? Do these data fit the model that hyperactivity is caused by a recessive allele of a single gene?