A property professional with nearly 20 years experience of estate agency in Suffolk and North Essex. During that time I have carried out market appraisals on over 5000 residential properties and have helped over 1500 people successfully sell their home.
Therefore, a son from a color-blind mother (who receives the trait from his mother on the X-chromosome) will always be color-blind, regardless of the state of the father (who can only give his son a Y-chromosome).
Red-green color-blindness in humans is due to an X-linked recessive gene. A woman whose father was color-blind possesses one eye with normal color vision and one eye with color-blindness. (a) Propose an explanation for this womanâs vision pattern.