Being told “you’re just like your mum/dad” is quite annoying sometimes, but somewhat true. While I always believed that you do inherit some genetic material from both your parents, your environment and upbringing also play a significant role, if not a more important role than your genetic inheritance.
There’s new research:
It had been thought that there are only a handful of situations in which just one of a pair of gene copies is used. But a new screen of 4,000 human genes has uncovered 371 that sometimes play favourites, suggesting that this phenomenon is far more pervasive than had been thought.
â€œWhat weâ€™ve shown violates general rules about what we think about genes: if a gene is turned on you express both the maternal and paternal copy,â€ says Andrew Chess, a biologist at Harvard University in Cambridge, Massachusetts, who led the study along with colleague Alexander Gimelbrant.
When only mum or dad matters [Nature News]