Petit was born in Laignes in 1948.[3] She initially studied at the Paris teaching hospital, Pitié-Salpêtrière Hospital and at the Pasteur Institute. She completed two pieces of post-doctoral research at the Centre for Molecular Research in Gif-sur-Yvette and another in Basel.
Petit's research has explored the link between genes and deafness, with her research group at INSERM "Génétique et physiologie de l’audition".[2] She is one of the pioneers of auditory genetics.
Together with Karen Steel, Petit won the Royal Society Brain Prize 2012, for their pioneering work on the genetics of hearing and deafness.[5]
Prizes and honours
1999 : Prix Charles-Leopold Mayer of the Academy of Sciences