Presentation on theme: "Lab Hours / Procedure You are responsible for your flies! Before or after school is your time to work –or- lunch on Monday and Friday Respect each other."— Presentation transcript:
Lab Hours / Procedure You are responsible for your flies! Before or after school is your time to work –or- lunch on Monday and Friday Respect each other while you are in the lab
Phenotypes Description of all 3 fly phenotypes at the start of the project. Drawings and labels of the 2 types you use. Ex:
Observations Vial 1 contains white females and wild males Vial 2 contains wild females and white males Every day you will make an observation Ex: Vial I: A good number of flies. Appears to be all wild. Some larvae & pupae. Medium is brown& black and looks repulsive. Vial II: Lots of flies, both wild & white. some larvae & pupae. Medium looks brownish- black and disgusting.
Sexing What would we say about sexing drosophila?
F1 Cross If the mutation for white eyes (W) is dominant and wild (+) is recessive, the punnet square would look like? But!!!!!!! If the mutation for white eyes (w) is recessive and wild (+) is dominant, the punnet square would look like?
F2 Cross Using the data from F1 cross determine if your cross is autosomal or sex linked. You know from F1 if it is dominant or recessive. How would you know this? Make a punnett prediction for the new cross. If it is sex linked use your sex chromosomes! X or Y.
Fly Counts DateFemale Wild (+) Male Wild (+)Female White-Eyed (w) Male White- Eyed (w) Totals: