The genetic recombination and its contribution to genetic diversity

Topics covered:
- Interchromosomal dihybridism Chr II and Chr III
- Intrachromosomal dihybridism Chr III (crossing over)
- Direct F2 monohybridism
- Sex-linked inheritance

Principles and objectives:
Observing under a binocular microscope a population of 300 sorted individuals, developing models, studying chromosome segregation and gene distribution. Based on these results, defining the type of hereditary law to which the studied strain corresponds.

Set of 4 cases
Each case contains 8 slides representing a complete cross of fruit flies embedded in resin, stable and unalterable, to conduct a genetic study: 1 parent slide, 1 F1 slide, 6 F2 test slides.
Each slide contains 40 sorted and counted individuals, totaling over 300 individuals. The fly proportions correspond to the expected theoretical frequencies.
An instruction manual describes the crosses, genotypes, and phenotypes at each stage.