Self Assessment Question # 1
for Lesson 11

by Dr Jamie Love © 2002 - 2010
Genetics Course

Here's a Chi-square Table and the equation for the chi-square is 2 = [(O - E)2/E]

Plants true-breeding for green pods were crossed with plants true-breeding for yellow pods and all the F1s were green.
These F1s were allowed to self-fertilize and
152 of the F2s produced yellow pods while the remaining
428 F2s produced green pods.

Degrees of Freedom 5 % Significance Levels
1
3.84
2
5.99
3
7.81
4
9.49

Use the chi-square to determine if these results are within the range of the expected ratio.

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