Showing your work on probability problems will allow you to get the most credit possible. A gene that determines color perception is on the X chromosome of humans. A heterozygous woman, with normal color vision, marries a man with normal color vision. Between S and M phases, each chromosome consists of two chromatids joined at the centromere. The allele for brown eyes is dominant to the allele for blue eyes.
Eye color is on an autosomal chromosome.
They could both be homozygous. They could both be heterozygous. The man could be homozygous and the woman heterozygous. The woman could be homozygous and the man heterozygous. E. c and d only 4.