Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions
In the late 1940s Edward Lewis discovered mutations in the Antennapedia gene that lead to legs developing on the head of a fly instead of antenna. These mutations are dominant and lead to ectopic expression of the Antennapedia gene.
-Certain mutations in the Antennapedia gene can lead to antenna developing in a mesothoracic segment where legs should have developed. What characteristics would you expect from this class of mutations? (Select all that apply.)

A) They are loss-of-function.
B) They are recessive.
C) They are gain-of-function.
D) They are dominant.
E) They result in ectopic Antennapedia expression.