Question
My girlfriend’s grandmother has schizophrenia, but she had two daughters who are fine, and my girlfriend is also normal. However, I’m worried about whether the next generation between me and my girlfriend will inherit it. I hope professionals can help analyze this. Please don’t just paste information; I need an analysis from a professional perspective. Right now, my mother is against us, and I’m really upset. I hope everyone can help me. Thank you!
Answer
When you go for pre-marital medical examination, check it out at the hospital. From a biological standpoint, this is a recessive genetic disease. The genetic trait for schizophrenia in your girlfriend’s grandmother is recessive, represented as aa. Her grandfather should be AA, so their two daughters should be Aa, carrying one recessive gene. Your father-in-law is either AA or Aa, and your girlfriend could be AA or Aa because her mother has one recessive a. So, if there’s no family history of schizophrenia, your chances of carrying the a gene are low, and generally speaking, the likelihood of your children developing the disease is low, mainly depending on whether you carry the a gene or not. If you’re AA, there’s no problem at all.