A monohybrid cross is used to study the inheritance of one trait (like flower color) that is controlled by one gene with two alleles. For example, crossing a plant with purple flowers (PP) with a plant with white flowers (pp) to see what color the offspring will have.
A dihybrid cross, on the other hand, is used to study the inheritance of two traits that are controlled by two different genes. For example, crossing plants that differ in both flower color (purple or white) and seed shape (round or wrinkled). This helps in understanding how these two traits are inherited together.
In summary:
- Monohybrid cross: One trait, one gene.
- Dihybrid cross: Two traits, two genes.
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