As a review from yesterday and to extend student learning of Punnett Squares to dihybrid crosses, we began class with the following video by Mr. Anderson of Bozeman Science:
Students took notes throughout the video, with emphasis placed on understanding the connection between meiosis and fertilization (as represented by the Punnett Square), sex-linked traits, and how to determine the alleles in a dihybrid cross. After the video, we reviewed how to identify the alleles, with pictures from the white board shown below:
We then worked through questions 1 and 2 of the dihybrid cross worksheet (pictured below), as well as portions of questions 3 and 4.
The Art of Science 