♀ Female parent
Genotype: Unknown
Observed phenotype
- Yellow body
- White eyes
- Miniature wings
- Wild type at sepia
Persistent virtual organism experiment
Drosophila Real-Time Cross Simulator
Real-time culture development with persistent F₁ and F₂ vials.
Real-Time Genetics Experiment
Parental cross
🧬 Experimental cross
Determine the mode of inheritance of four Drosophila mutations
Infer the inheritance of sepia, yellow, white and miniature using only the observed phenotypes and counts in the F₁ and F₂ generations.
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P cross
♂ Male parent
Genotype: Unknown
Observed phenotype
- Sepia eyes
- Wild-type body colour
- Wild type at white
- Wild-type wings
Scientific question
Based only on the F₁ and F₂ offspring, determine the inheritance pattern of each mutation, identify dominance or recessiveness, test for sex linkage, detect epistasis and linkage, and reconstruct the parental genotypes.
Use the flies that emerge as your evidence. The parental genotypes are intentionally hidden.
Vial Shelf
Name a vial before starting it, then switch between saved generations at any time.
Cross not started
Start the experiment to activate the vial.
Day 0
Cross
Day 0 Eggs
Day 1 Larvae
Days 2–4 Pupae
Day 5 Adults
Days 6–10
Day 0 Eggs
Day 1 Larvae
Days 2–4 Pupae
Day 5 Adults
Days 6–10
Parental cross
Not started
Not started
Virtual Lab Notebook
Automatic stage observations and student notes are preserved locally and in the cloud.
No observations yet.
F₁ Offspring Observations
Use the observed phenotype classes and counts to infer the inheritance pattern.
| Sex | Observed phenotype | Adults |
|---|
Dr. Andres Posso-Terranova. 2026. ©
