Pea diminish leaf and stem growth. Adult weevils feed on the leaves and create a notched, "c-shaped" appearance on the outside of the leaves. In the mid-19th century, Austrian monk Gregor Mendel's observations of pea pods led to the principles of Mendelian genetics, the foundation of modern genetics. He ended up growing and examining about 28,000 pea plants in the course of his experiments. Mendel chose peas for his experiments because he could grow them easily, develop pure-bred strains, protect them from cross-pollination, and control their pollination. Mendel cross-bred tall and dwarf pea plants, green and yellow peas, purple and white
Muriel Wheldale Onslow teachings. In 1900 she entered Newham College, Cambridge and took a class in Natural Sciences Tripos. In 1903 she joined William Bateson's genetics lab at Cambridge where she began her study focusing on the interaction of factors and of the inheritance of petal color in Antirrhinum (snapdragons). William Bateson was the English biologist who was the first person to use the term genetics to describe the study of heredity, and the chief populariser of the ideas of Gregor Mendel following their rediscovery in 1900. Bateson and Onslow carried out a series of breeding experiments in various plant and animal species