Start with the short lesson to review slash notation, sex-linked genes, chromosome symbols, and allele conventions.
Work through 10 questions that ask you to interpret a displayed genotype.
Break each notation into chromosomes, alleles, sex, and genotype components.
Translate genotype descriptions into standard Drosophila slash notation.
Complete the three guided practice sections, then test yourself with randomized questions.
Use the feedback to revisit mistakes. After completing the full activity, you can create a local PDF progress report.
Learn how to read, write, and interpret Drosophila genotype notation using standard slash notation before starting genetic crosses.
This tool helps students practice the symbols used in fly genetics: gene-specific wild-type alleles such as w+ and se+, the slash /, lowercase recessive mutations, uppercase dominant mutations, allele names, and slash notation.