In humans, freckles and brown eyes are dominant traits, controlled by two different genes located on different chromosomes. The recessive alleles of each gene produce no freckles and blue eyes, respectively. What are the phenotypic ratios expected across between someone who is heterozygous for freckles and blue-eyed and their mate, who is non-freckled and heterozygous brown-eyed?
a) 3 freckled, brown-eyed : 1 non-freckled, blue-eyed
b) 1 freckled, brown-eyed : 1 freckled, blue-eyed : 1 non-freckled, brown-eyed : 1 non-freckled, blue-eyed
c) 3 freckled, blue-eyed : 1 non-freckled, brown-eyed
d) 1 freckled, brown-eyed : 2 freckled, blue-eyed : 1 non-freckled, blue-eyed