In Guinea pigs, black hair (B) is dominant over white (b), rough coat texture (R) is dominant over smoothir), and short hair (5)
dominant over long hair (6) Assuming these genes are on separate chromosomes, draw the Punnett square for a cross between a heterozygous
BLACK, ROUGH, SHORT haired with another heterozygous BLACK, SMOOTH, LONG haired guinea pig What is the PHENOTYPIC RATIO of the
offspring? Genotype of the parents

Letters A and B represent the genotypes of the Parents Letters C, D, E, and F represent the genotypes of the Offspring.

Explanation:

The punnet square is a square shaped figure or diagram used to anticipate the genotypes of offspring after a certain parental cross. It helps in determining the genotype as well as phenotype of the offspring if we know the genotype of parents.

The figure was devised for the very first time by Reginald C. Punnett and named after him. The square diagram can also be considered as a summary of parental and offspring alleles.It is important to understand the homozygosity and heterozygosity before using the punnet square in proper way.

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