1. Matthew 18:11
11 For the Son of man is come to save that which was lost.

2. Breeding Drosophila
Timothy G. Standish, Ph. D.

3. Why Drosphila melanogaster?
Drosophila melanogaster is a kind of fruit fly
Why fruit flies?
Short generation time (≈ 2 weeks)
Survives and breeds well in the lab
Very large chromosomes in some cells
Many aspects of phenotype are genetically controlled
Commercial strains are available
Small size
Easily sexed

4. Drosophila Nomenclature
+ = Wild type, phenotype in nature (i.e. red eyes and round wings)
Mutants are alternatives to the wild type
Fruit fly genes are named after the mutant
Dominant mutations are capitalized (i.e. Hairless or H and Bar or B)
Recessive mutants are named using lower case letters (i.e. black or b and white or w)

5. Antenapedia

6. Bar
Female
Male

7. Dumpy

8. More Drosophila Mutations
Wild Type ++
ebony body ee
white eyes ww

9. Sex Determination Sexing of Drosophila is relatively easy Males have:
Different genitals
Small black sex combs on their front legs
Darker colored hind end
Females:
Distinctive genitals
No sex combs
Lighter colored hind end

10. The
End