Final answer:
The law of segregation describes how genes segregate equally into gametes during reproduction, ensuring an equal likelihood of inheriting either factor.
Step-by-step explanation:
The law of segregation, derived from Mendel's conclusions, describes the process of paired unit factors (genes) segregating equally into gametes during reproduction. This means that offspring have an equal likelihood of inheriting either factor. For the F2 generation of a monohybrid cross, three possible combinations of genotypes can result: homozygous dominant, heterozygous, or homozygous recessive. The law of segregation supports Mendel's observed 3:1 phenotypic ratio and allows us to accurately predict the offspring's genotypes using a Punnett square.