Punnett Square

A Punnett Square.

Invented by Professor Reginald Crundall Punnett FRS (20 June 1875 - 3 January 1967)

A table used to predict the phenotype of the offspring of two known parent organisms. The punnett square can also be used to carry out a back cross. This is a technique where the phenotype of the offspring is used to determine the genotype of one or both of the parental organisms.