Determine what each letter represents in the punnett square.

letters a and b represent the genotypes of the letters c, d, e, and f represent the genotypes of the

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.

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i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.