Chi-square analysis of crosses Knowledge-Based Download PDF

Questions

1. 1.

   In a genetic cross involving incomplete dominance, the second filial (F2) generation displays three distinct phenotypic classes: red, pink, and white. When conducting a chi-square goodness-of-fit test to evaluate whether the observed phenotypic counts conform to the expected 1:2:1 ratio, how many degrees of freedom must be used?

   • A) 2
   • B) 1
   • C) 3
   • D) 4