The Y chromosome has finally been sequenced: here’s why it matters

Mark Jobling, professor of genetics, discusses the sequencing of the Y chromosome and its role in male development, health, fertility, and forensics. Challenges in sequencing due to repeated sequences and degeneration are explored. The importance of the Y chromosome in forensics and surname tracing is highlighted. Unanswered questions about genes in sperm production, gene editing technology, and studying other organisms' sex determination systems are discussed.