4 50 Homo sapie AGUCGAGUC---GCAGAAACGCAUGAC-GACC Pan panisc AGUCGCGUCG--GCAGAAACGCAUGACGGACC Gorilla go AGUCGCGUCG--GCAGAUACGCAUCACGGAC- Pongo pigm AGUCGCGUCGAAGCAGA--CGCAUGACGGACC ACAUUUU-CCUUGCAAAG ACAUCAU-CCUUGCAAAG ACAUCAUCCCUCGCAGAG ACAUCAUCCCUUGCAGAG