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Drosophila melanogaster

Drosophila melanogaster. FRUIT FLY GENETICS . Fansler .. Why are we doing this?. Most common used genetic organism to study Reproduces quickly Little requirements (food, space, mates) It’s awesome.. Duh. Life Cycle. Females mate 10-12 hours after becoming adult

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Drosophila melanogaster

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  1. Drosophila melanogaster FRUIT FLY GENETICS 

  2. Fansler.. Why are we doing this? • Most common used genetic organism to study • Reproduces quickly • Little requirements (food, space, mates) • It’s awesome.. Duh.

  3. Life Cycle • Females mate 10-12 hours after becoming adult • Can hold A LOT of sperm from many different males • Fertilizes eggs as she lays them • Important for controlled crosses to have virgin females

  4. Morphology of Flies • Wild-Type = normal

  5. Sexing Flies

  6. How to study flies • They fly.. And they will fly.. If you let them. • Use ice to anesthetize them • Petri dishes with lids ON! • If they start to wake, put back on ice • Use dissecting scopes and paint brushes to examine

  7. So, what are we doing today? • Partners • Wild-type flies • Sort according to sex • Practice looking at anatomy (wings, sex organs, eye color)

  8. What will we be doing?? • 3 vials of F1 flies with different mutations • Each group will be assigned a vial but will not know what the cross was • Study the F1’s • Let F1’s mate to produce F2’s… wait for eggs to hatch over the course of 2 weeks • Examine F2’s • Try to find the inheritance pattern of your flies

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