The skin's dermis is made of layers of cells, connective tissue and several structures that aid in maintaining its function. These structures include blood vessels, hair follicles, lymph vessels and glands.
XnY one color blind boy. 1  Probability of having a color blind daughter is (1/2 x 1/2) or 1/4 or 25% (0.25) This is because both sex and colorblindness are involved in the solution.  The probability that their first son is color blind is 50% (0.50). In this question only males are part of the solution.
For example, 0.5% (0.005) of the population are colorblind females X X (0.05 x 0.10 = 0.005). Five percent (0.05) of the population are color-blind males X Y (0.5 x 0.1 = 0.05). This is roughly equivalent to the percentages of color-blind females and males in the U.S. population. Y. In the above cross, four different possible offspring are produced: X Y: Color-blind Boy (1/4 or 25%) X+Y Normal Vision Boy (1/4 or 25%) X X Color-blind Girl (1/4 or 25%) X+X Heterozygous Normal Vision Girl (1/4 or 25%) Note: The heterozygous normal vision girl carries the recessive gene for color blindness.