Drosophila Lab - A microscopic view of F2 fly progeny with different combinations of body color, wing development, and eye color Drosophila Lab - A microscopic view of F2 fly progeny with sex-linked traits Drosophila Lab - More F2 fly progeny! Drosophila Lab - The students count F2 fly progeny to check for any linkage between mutant traits Drosophila Lab - The students count the F1 fly progeny to check for dominant and recessive traits Drosophila Lab - The students determine if the mutant traits are autosomal or sex-linked by counting the F1 fly progeny Drosophila Lab - The students figure out how many genes are responsible for eye color in the fly crosses Lecture - The students take notes as Professor Jeyabalan lectures on sex determination and sex-linked traits Snacks - The students take a food break from all of their hard work