# General Genetics - Exam Four 2022

In a pedigree for an autosomal recessive trait, we expect to observe _____ and ______.
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One of Mendel's dihybrid cross experiments examined the inheritance of seed color and seed shape. From a cross between two F1 dihybrid plants with round yellow seeds, Mendel observed the following in the F2 generation:
316 plants with round yellow seeds
102 plants with wrinkled yellow seeds
109 plants with round green seeds
33 plants with wrinkled green seeds
Use the chi-square test to determine whether the F2 phenotypes fit the expected ratio. Which of the following matches your calculated chi-square value?