Final answer:
Yes, males can be carriers of red-green color blindness. Color blindness is an autosomal recessive trait, meaning that the gene responsible for it is located on an autosomal chromosome and not the sex chromosomes.
Step-by-step explanation:
Yes, males can be carriers of red-green color blindness. Color blindness is an autosomal recessive trait. This means that the gene responsible for color blindness is located on an autosomal chromosome, not on the sex chromosomes (X or Y). If a male inherits a recessive gene for color blindness, he can be a carrier and pass it on to his children, but he may not necessarily express the trait himself.