Through his work on pea plants he discovered the laws of inheritance, which are:
The Law of Segregation: Each inherited trait is defined by a gene pair. Parental genes are randomly separated to sex cells so that they contain only one gene pair. Offspring then inherit one allele from each parent when cells unite unite in fertilization
The Law of Intependant Assortment: Genes for different traits are sorted seperatly from one another so that the inheritance of one trait is not dependent on the inheritence of another
3.The Law of Dominance: An organism with alternate forms of a gene will express the form that is dominant.
He published his findings in 1865, but his discoveries were not appreciated until they were rediscovered in 1900.