Hint for Question 4
See Section 15.6 Gene Sequencing Has Enhanced Understanding of Mutations in Humans. Myotonic dystrophy is an autosomal dominant disorder that exhibits "genetic anticipation."
This hint opened in a full-sized browser window because your browser either does not support scripting or you have turned scripting off. You might try making the window smaller manually and leaving it open. This way, hints will open in that smaller window.