Was an Austrian monk who investigated the inheritance patterns, with peas. He established three important laws of genetics; law of segregation, law of independence and law of dominance. His work wasn't notice until 16 years after his death, by three German scientists. Overall, he was revolutionary in establishing the way in which the physical characteristics of organisms can be inherited from there parents. He was one of the earliest people to research in the field of genetics. He discovered allele, and how they work.