Gregor Mendel and Reginald Punnett

Gregor Mendel discovered the basic principles of heredity through experiments in his garden. Mendel's observations became the foundation of modern genetics.The Punnett Square was created in the early 1900's by Reginald Punnett. Punnett was born in 1875 and was the eldest of three children. He grew up in England and was fascinated by the natural sciences at an early age. When he was young, he was often stricken by appendix issues and had to stay quiet during recovery.

Reginald Punnett was born in England. As a young boy, Punnett suffered from appendicitis. During one of his recuperative periods, he started reading a series of books Naturalist's Library. His father had bought the books because of the elegant binding; Punnett was fascinated by the subject. Punnett devised the "Punnett Square" to depict the number and variety of genetic combinations, and had a role in shaping the Hardy-Weinberg law. Punnett and Bateson co-discovered "coupling" or gene linkage