Final answer:
Three conclusions from studies on genes and SES are: genes contribute to physical and behavioral traits, the debate over biological determinism in sociobiology, and the bidirectional influence of genes and environment known as genetic environmental correlation.
Step-by-step explanation:
Studies investigating the relationship between genes and socioeconomic status (SES) have led to several conclusions, highlighting the intricate interplay of environmental and genetic factors in determining intelligence and behaviors. First, the evidence suggests that genes are significantly associated with not just physical characteristics, but also with behavioral traits and psychological disorders like depression and schizophrenia.
Secondly, there are heritable behaviors influenced by natural selection, and this gives rise to debates in sociobiology about the extent to which behaviors are determined by genetics - a concept known as biological determinism. Lastly, genetic environmental correlation is a crucial insight, showing that our genes can influence our environment, which in turn can affect the expression of our genes, leading to outcomes such as a child achieving their genetic potential due to an environment shaped by their parents' genes.