Which of the Following Would Likely Exclude a Sequence from Being

Multiple Choice

Which of the following would likely exclude a sequence from being considered as an active gene?

A) introns missing the GT- AG splice junctions compared to other genes in this family
B) only one long exon
C) an exon followed by 3' processing signals
D) a promoter with signals identical to the promoter of another gene
E) exons in different reading frames from one another