Investigating+Selective+Breeding



Investigating Selective Breeding Lab-Aids #905 $39.50

Emily Zablocki- The first part of this lab was great. It lead the students backwards through Punnett Squares where they make the Punnett Squares last after having collected data, but they have to figure out what Punnett works best for their data. The second part of the selective breeding was not at all what I had expected and it is not something I would do in my class, because it deals very little with selective breeding.

Carrie Bidwell - I think the first portion of this lab is a good alternative to the traditional counting corn lab. The cardboard corn cards can be laminated and reused for many years. Also, the cardboard is easier to count and will not attract mice to your classroom. I also liked how the students collected the quantitative data and then used this real data for their Punnett Squares.

Deb Semmler- I agree that this is a bit easier than counting actual corn kernels and i do like how the data comes first and the students are challenged to work backwards to determine what cross could have resulted in these results. But there were only tow types of crossed which means that everyone will have the same answers. I would look for a way to try to have more possibilities and to work double trait crosses into the mix too. Didn't have much to do with selective breeding though. Sorry.

Jim-I personally prefer using real corn cobs, as we did in the other lab. Counting real corn seems less "manufactured"; more like a real experiment.

Alvin - I would rather use real corn than a picture. The questions seem pretty good in this lab though. They asked different questions than @Mendelian Genetics of Corn Kit. There was a tie to selective breeding, but it was a little weak.