ABSTRACT
Mendel formulated two basic principles of heredity from his experiments with garden peas: (1) the law of segregation and (2) the law of independent assortment. He selected pure-line parent varieties differing from each other by clear-cut contrasting traits which helped him to classify the F1 (rst lial) generation and to score segregating progenies accurately in F2 (second lial) and later generations. Although Mendel was unaware of the gene-chromosome relationship, his method of experimentations, keen observations, and statistical approach to analysis of data led him to discover and develop basic principles of heredity.
