A mother’s genetics may play a bigger role in determining whether a child becomes overweight than a father’s, as a result of a concept known as genetic nurture, finds a new study led by UCL researchers. Published in PLOS Genetics , the study analysed genetic and health data from 2,621 UK families in the Millennium Cohort Study, a UK birth cohort study of individuals born in 2001/02. Researchers investigated how parents’ body mass index (BMI) and related genes influence their children’s weight