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The Corn Grew!

We have been out of school for a week for our Spring Break holiday.  A week prior to the break, my biology I class started growing some corn seeds for our lab, The Effect of Environment on Gene Expression.  This lab requires 2 observations after the corn starts to grow.  We did the first observation over a week ago.  Today we did the second observation, collected our data and wrote our lab reports.  We expected to get a 75%:25% ratio of green stems to albino stem.  Our actual data came very close to this.  Here are a couple of photos of the growing corn:

The students really love doing this lab.  Many of them took their corn home with them!  A good extension of this would be to do a chi-square analysis of the data.  This particular class is not prepared for that kind of data analysis, so I did not do it with this class.  Maybe next year!

After we finished the lab, we did a practice problem worksheet on Codominance and Multiple Alleles.  I am giving a quiz on these types of problems tomorrow.  Good luck everyone!

Practice Problem Worksheet on Codominance and Multiple Alleles
Quiz: Incomplete Dominance and Codominance
Quiz: Multiple Alleles and Sex-linkage

1 comment:

  1. Cool! Kids love growing stuff! Especially my nature deprived children in Phoenix. We grew radishes for an inquiry project this year and they were very excited about things actually growing! Who would have known.