Punnett square

(redirected from Punnent squares)
Also found in: Encyclopedia.

Punnett square

 [pun´et]
a graphic depiction in grid form of how genes from each parent might combine in an offspring.
Punnett square showing sex chromosome combinations for male and female gametes. From Mueller and Young, 2001.

Punnett square

Etymology: Reginald C. Punnett, English geneticist, 1875-1967; OFr, esquarre
a matrix that shows all of the possible combinations of male and female gametes when one or more pairs of independent alleles are crossed. Letters representing the male and female gametes are placed along the left side and the top of the matrix, respectively. The genotypes of the offspring produced by each pairing of gametes occupy the cells in the matrix. See also pedigree.
enlarge picture
Punnett square
Punnett squareclick for a larger image
Fig. 262 Punnett square.

Punnett square

a table devised by the British geneticist R. Punnett, in which all possible combinations of gametes and progeny are displayed in a grid structure. For example in the cross:

Aa, Bb x aa, Bb

the Punnett square would be as in Fig. 262.

Punnett,

Reginald Crundall, English geneticist, 1875-1967.
Punnett square - a grid used in genetics. Synonym(s): checkerboard