Rights: University of Waikato Published 16 August 2011 Size: 43 KB

Mendel cross-bred plants with 2 or more traits and found that each trait was inherited independently of the other and produced its own 3:1 ratio. For example, a plant with round, yellow seeds crossed with a plant with wrinkled green seeds gives a ratio of 9:3:3:1. This is the basis for Mendel’s principle of independent assortment.