Today in class we collected data on the rate of crossover in Sordaria. We found that the distance between the centromere and the gene for spore color was approximately 28 map units. If you were absent today you will need to get the data from a classmate. For analysis of the lab I asked students to draw the chromosomes at the end of meiosis I and meiosis II when crossover has occurred.
Toward the end of class I introduced Chi-Square statistical analysis. This is a calculation used to determine if data collected differs significantly enough from the expected to indicate that our initial hypothesis is refuted.
There is no homework, unless you did not complete the chromosome drawings for the analysis of the Sordaria activity.
Don't forget the test on Ch. 14 and 15 this Friday!
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