Individuals with Duchenne muscular dystrophy are usually confined to a wheelchair by age 12 and often die of respiratory infection or cardiac failure shortly thereafter. Based on this information, would you expect any women to have Duchenne muscular dystrophy? ____________________________ Why or why not?
_ A woman with normal vision but whose father was red-green colorblind has a child with a male with normal vision. What is the probability they will produce a colorblind daughter?
What is the probability of a colorblind son? __________
Of all sons, what is the probability that one of them will be colour-blind?