In humans, dimples (D) are dominant over no dimples (d). Curly hair (A) is dominant over straight hair (a). Paul, who is heterozygous for dimples and curly hair, marries Jane, who
has curly hair but does not have dimples. Jane's mother had straight hair, but her father had
curly hair. Paul and Jane had a child named Peter, who had curly hair but did not have
dimples.