Red-green color blindness is an X-linked recessive trait (dominant allele denoted as C).Two normal-vision parents have a color-blind son.The genotypes of the father,mother,and son are respectively ___,_,___.

Question

Red-green color blindness is an X-linked recessive trait (dominant allele denoted as C).Two normal-vision parents have a color-blind son.The genotypes of the father,mother,and son are respectively _____,_____,_____.