How is gene involved in sickle cell anemia different from the genes for pea plants that mendel studied?

The gene involved in sickle cell anemia is the HBB gene, which encodes the beta-globin subunit of hemoglobin in humans and is associated with a specific mutation (a single nucleotide substitution) that leads to the disease. In contrast, the genes Mendel studied in pea plants, such as those for seed shape or flower color, are typically characterized by simple Mendelian inheritance patterns. While both types of genes follow genetic principles, the complexities of human genetics, including multiple alleles and interactions, make sickle cell anemia a more intricate trait than the traits Mendel observed in peas.