Final answer:
The genotype for a color-blind male is XcY, where Xc represents the allele for color blindness and Y represents the allele for normal color vision. Males will be color blind if they inherit the Xc allele, as they have only one X chromosome. Females need to inherit the Xc allele from both parents to be color blind, and in most cases, females with one colorblind allele and one normal allele are carriers of the gene.
Step-by-step explanation:
Color blindness in males is inherited with an X-linked recessive allele. The genotype for a color-blind male would be represented as XcY, where Xc is the allele for color blindness and Y is the allele for normal color vision. Since males have only one X chromosome, they will express the colorblindness trait if they inherit the Xc allele. In contrast, females need to inherit the Xc allele from both parents to be color blind, as they have two X chromosomes. In most cases, females with one colorblind allele and one normal allele are carriers of the gene, meaning they carry the allele but do not express the colorblindness trait.