When Looking at the Unusual Protrusion Sticking Out of a Newborn's

Multiple Choice

When looking at the unusual protrusion sticking out of a newborn's head, Dr. Natas says, "I am sure that the growth is due to some sudden change in the structure of the genes that was not passed on by the parents." This means that Dr. Natas suspects that the growth is due to

A) mutation.
B) some nutritional problem.
C) a recessive gene.
D) codominance.