In Regard to DNA,an Exon Is Defined as A

Multiple Choice

In regard to DNA,an exon is defined as a:

A) segment of DNA that is represented in a mature strand of mRNA and is translated into protein.
B) sequence of nucleotides recognized by RNA polymerase as the initiation point of transcription.
C) segment of DNA that is transcribed but removed from mRNA by excision and is not translated into protein.
D) sequence of three base pairs that signal initiation or termination of replication.