In what way does water support all life on earth?
creates energy for life processes

moderates earth's temperatures

provides a habitat for every organism

comprises the basic elements of organic molecules

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)