checkerboard(redirected from Draughtboard)
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Punnett,Reginald Crundall, English geneticist, 1875-1967.
Punnett square - a grid used in genetics. Synonym(s): checkerboard
the pattern of a chess or draft board; used in many circumstances to display the results of mixing a specific number of variables. The variables are listed in columns designated along the horizontal border and the same or different variables in lines along the vertical border; the results of each mixing are recorded in the box where the columns and lines carrying the ingredients of the mix intersect.