Juq-373
The canonical base pairs (A‑T, G‑C) are stabilized by hydrogen bonds. Occasionally, a from one base to the other, creating a tautomeric shift that leads to a mismatched pairing during replication—one pathway for spontaneous mutation.
If you need the exact title and actress for JUQ-373, run a real-time search on a Japanese AV database – the information changes as performers retire or codes are re-listed. JUQ-373