NONE 9. In humans, a type of blindness is due to a dominant allele: normal is the result of a recessive allele. Migrai vision headaches are due to a dominant allele, and normal (no headaches) is recessive. A male who is heterozygous for blindness and does not suffer from headaches marries a woman who has normal vision and does not suffer from migraines. Could they produce a child with normal vision who does not suffer from headaches? If yes, can the probability of such a child be determined? h VISIJn no hoadailu, Normal No Mara Inus This problem is a little more challenging than the previous ones because it involves lack of dominance in both characteristics that are being followed. However, you use the same Punnett square method to determine the outcome of this cross as you would with any other double-factor cross In the radish plant, the long and round traits exhibit lack of dominance and the heterozygotes have an oval shape. The red and white color traits also exhibit lack of dominance and heterozygotes have a purple color. Two purple plants are crossed. What phenotypic ratio would the offspring show? RW RW