a) In the turtles, brown shells and red legs are most prevalent forms of traits. Occassionally green shells and yellow legs are observed. A test cross of the dihybrid turtle displaying both wild type phenotypes with the homozygous recessive turtle is preformed. Suppose both the dominant alleles are present on one inherited chromosome and both recessive alleles are present on the other inherited chromosome in the case of the wild type organism. Write down the allele combinations which could be present in the gametes generated by the wild type turtle.