Question
My boyfriend’s grandmother and uncle have an intellectual disability, but his mother, other aunts, and sisters, as well as their children, are all normal. I would like to know if this genetic trait will be passed down to the next generation across generations, and whether this gene can be detected before or during pregnancy.
Answer
Genetic intelligence deficiency is not absolute and may be passed down across generations or even further. It is recommended to undergo pre-pregnancy checks and prenatal screening, maintain a balanced diet and appropriate exercise, and keep a positive mood to enhance physical fitness.