The precursor of egp is translated from a transcript that has had one nontemplated nucleotide added to the open reading frame. this change does not create or eliminate a stop codon. compared with the protein sgp, which is produced from the unedited transcript, egp most likely has the same primary:
amino-terminal sequence as sgp, but a different primary carboxy-terminal sequence
carboxy-terminal sequences as sgp, but different primary amino-terminal sequence
sequence as sgp except egp has one additional aa
sequence has sgp except that egp has one less aa

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.