Which Piece of Evidence Is Most Likely to Indicate a Gene

Multiple Choice

Which piece of evidence is most likely to indicate a gene within a genome?

A) A unique sequence within a genome is 80% similar in human, mouse, and zebrafish.
B) A sequence is unique to a nematode genome.
C) An identical open reading frame is found in two species of fruit fly.
D) A sequence is repeated multiple times in the human genome.
E) A sequence is 50% identical between human and chimp but does not include an open reading frame.