In humans, the gene for color blindness is recessive and is located on the X chromosome with no corresponding gene on the Y. If a man and a woman, both with normal vision, marry and have a color- blind son, draw the Punnett square that illustrates this. If the man dies and the woman remarries to a color- blind man, draw a Punnett square showing the type(s) of children that could be expected from this marriage. How many/ what percentage of each could be expected?