Is it true tobacco and or or alcohol use can mutate children before birth?

Yes, tobacco and alcohol use during pregnancy can lead to adverse effects on fetal development. Tobacco use is associated with low birth weight, preterm birth, and developmental issues, while alcohol consumption can cause fetal alcohol spectrum disorders (FASDs), which can result in physical, cognitive, and behavioral problems in children. These substances can affect the genetic and developmental processes of the fetus, but they do not cause mutations in the genetic material itself. Instead, they can lead to developmental abnormalities and health issues.