Question at position 6 True or false: Genes can directly cause human behavior.True or false: Genes can directly cause human behavior.TrueFalse单项选择题
A
True
B
False

Question

Question at position 6 True or false: Genes can directly cause human behavior.True or false: Genes can directly cause human behavior.TrueFalse

BlackTom AI · Accepted Answer

The question asks about whether genes can directly cause human behavior. 
Option 1: True. This is not accurate because genes provide biological props and predispositions, but they do not directly cause complex behaviors on their own. Behavior results from the interaction of genetic factors with environment, development, learning, and experiences. 
Option 2: False. This statement correctly reflects current understanding: genes influence the likelihood or propensity for certain behaviors, but they do not deterministically cause behavior in isolation. They contribute to underlying mechanisms such as brain development, neurotransmitter systems, and hormonal pathways, which then interact with environmental inputs to shape behavior. 
Additional nuance: saying genes “directly cause” behavior ignores concepts like gene–environment interaction, epigenetics, and polygenic influences. Behaviors emerge from dynamic systems where multiple factors converge, not from a single gene acting in a vacuum. 
Option 3 (if present): Any version claiming a direct one-to-one mapping between a gene and a specific human behavior overlooks the complexity of behavioral phenotypes and the probabilistic influence of genetics. 
Option 4 (if present): Any assertion that genetics has no bearing at all on behavior is likewise incorrect, since heritable variation can modulate tendencies, risk factors, or propensities that shape how individuals behave in various contexts. 
In summary, recognizing that genes influence but do not directly cause behavior captures the best-supported view in behavioral genetics, accounting for environment, development, and interaction effects.

Question at position 6 True or false: Genes can directly cause human behavior.True or false: Genes can directly cause human behavior.TrueFalse单项选择题

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