Funded Oct 21, 2011Thank you so much for believing in investing in my classroom but more importantly in my students. With your donations, I was able to buy a few sets of fruit fly packaged experiments. We received fruit flies with regular wings (wild type) and fruit flies with small wings (apterous). We bred the fruit flies separately and when the females were hatched from their larva, we quickly separated them from the males. Then we took apterous females and bred them with wild type males to see what their offspring would look like.
Students made Punnett squares, studied X-linked genes, and predicted the phenotype (wings or no wings) of the new generation. We incorporated this experience in our unit about genetics. We studied Hemophilia in the old Russian royal family and students explained why it appeared that only men received the disease. We related this project with the fruit flies to hemophilia by discussing X-linked genes.
However, we unfortunately ran into a few problems. The fruit flies took longer than expected to "hatch." In fact, both new generations hatched while on Thanksgiving break and Winter break, so we could never separate the offspring from the parents. Therefore we had difficulties collecting data to compare our predictions with. Regardless of these glitches, this has been a highlight to many students' year so far. They've enjoyed working with bugs, learning that simply by looking at a fruit fly, you can identify its sex and its wing type. What I am most excited about though, was that we incorporated the fruit flies into a Parent Science night. Students brought parents to discuss different aspects of Biology they've learned so far. The fruit flies were a hit, as you can see in one of the pictures. In addition to the fruit flies, students discussed DNA transcription and translation, homology, and evolution.
Again, I would like to express my appreciation for your financial support. Your generosity was a huge help. Currently our science department has $0 for our budget, so your support was necessary. It not only communicates that you believe in my students and I, but it also encourages me to continue pouring my heart and soul into these young lives as well. ”
With gratitude,
Mrs. Morris