While many of the dystopian predictions of human genome sequencing have proved alarmist, there are some real questions to be addressed. Science alone cannot provide the answers, writes Mark Henderson, director of communications at the Wellcome Trust.

The Gattaca frame, that DNA means destiny and discrimination, has however outlived its usefulness. The deeper understanding of genetics unlocked by the genome sequence has shown that many of society's fears are founded on a misconception.

Human genome sequencing: the real ethical dilemmas by Mark Henderson, Guardian