A helix of genetic information. Your DNA partly determines who you are and what you’re good at. 'Nature and nurture’ — but what if you or your parents could modify your DNA? No more hereditary diseases or defects! Designer babies and CRISPR: sounds ideal, right? But would you want your identity to be entirely determined by your parents and some scientists in a lab? DNA is complex and does more than you might think. That’s why it’s also heavily researched.