👉 In the context of genetics, a Mendelianist is someone who believes that all traits are inherited independently from each other. They believe in the principle of "heritability," which states that physical characteristics can be passed down through parents and that these characteristics are not always determined by environmental factors or genetic mutations. Mendelists argue that genetic inheritance is a fundamental concept, as it explains how different traits can arise from identical genes. They also reject the idea of evolution due to their belief in natural selection