Phenotypic ratio of F 2: 3 tall : 1 dwarf Mendel's First Law - the law of segregation; during gamete formation each member of the allelic pair separates from the other member to form the genetic constitution of the gamete Confirmation of Mendel's First Law Hypothesis. With these observations, Mendel could form a hypothesis about segregation. read more
This means that the tall pea plant had a double dominant heightgene (each gene has 2 parts, one from each "parent"). read more