Millie McWilliams has Bainbridge-Ropers syndrome, in which she is missing two DNA bases in the ASXL3 gene. Select the true statements about Millie and her syndrome.
a) The syndrome is caused by an excess of DNA bases.
b) ASXL3 gene is related to Bainbridge-Ropers syndrome.
c) Millie McWilliams has an extra DNA base.
d) The syndrome has no genetic basis.
