Instruction
Introduction
In the introduction review Mendel’s Law of Segregation and Law of Independent Assortment as well as their connection to the monohybrid cross, test cross and dihybrid cross. Explain the chi-squared analysis, focusing on the purpose of the test to compare two populations.
Materials and Methods
Refer to the appropriate pages in your lab manual
Results
In your results, you should do a chi-square analysis of the 3 series of data collected by your group. You may want to check out the automatic chi-squared calculator on-line to see if your chi-square test is done correctly at http://graphpad.com/quickcalcs/chisquared1.cfm. Here you input your data and a statistical program will automatically determine your chi-squared value and your P value. It will also state whether or not your data is significantly different than the expected values, from a statistical perspective.
Present your results in the table format that was supplied during the lab exercise.
Discussion
In the discussion look at your chi-squared data and discuss whether or not the data is significantly different than what is expected in these three samples. Explain whether or not your data supports the Mendelian Laws.
You might search the Internet for a discussion of chi-square analysis of a dihybrid cross.
References
List those that you cite in the body of the lab report.