Gregor Mendel
Explanation
The first work on genetics was done by (b) Mendel. Gregor Mendel, an Austrian scientist and Augustinian friar, conducted groundbreaking experiments with pea plants in the mid-19th century. His work laid the foundation for the modern science of genetics, and he is often referred to as the “father of genetics.” Lamarck (option a) and Darwin (option d) are associated with early evolutionary theories, and de Vries (option c) is known for his work on mutations and the concept of saltation.
