Homework Help: Science

Posted by Jessie on Monday, March 14, 2011 at 2:06pm.

1. In an experiment performed by Gregor Mendel the results were are as follows. Two pea plants were crossed both were heterozygous for two traits, YyRr, yellow and round. The following F1 offspring were obtained, 315 round yellow, 101 wrinkled yellow, 108 round green, and 32 wrinkled green, a total of 556 F1 offspring. Mendel’s ideas regarding segregation and independent assortment predict a 9:3:3:1 ratio.

a. Use the Chi square test to determine whether these results are significantly different from what is predicted, in other words is this a chance result or is there some other explanation. You must show all steps of your work, explain the calculation results, and if you accept or reject the results and why.

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