Why might aggressive MAOA gene carriers have an evolutionary advantage?

Why might aggressive MAOA gene carriers have an evolutionary advantage?

• A. They may be better hunters, protect family, and gain higher status
• B. They are always more intelligent
• C. They avoid social conflicts
• D. They have no advantage

Answer: (A)

An evolutionary perspective on how genes shape behavior helps explain why aggression linked to this MAOA variant could be advantageous. The MAOA gene influences how neurotransmitters are broken down, and a lower-activity version can lead to more reactive aggression when someone faces threat or stress. In ancestral environments, being more aggressive could help with securing resources, defending kin and territory, and increasing social status—outcomes that can boost access to food, mates, and protective allies. These benefits can translate into greater survival and reproductive success, giving such carriers a potential evolutionary edge. That’s why the idea that they may be better hunters, protect their family, and gain higher status fits best. The other options don’t align with how this gene variant is thought to influence behavior or fitness.

An evolutionary perspective on how genes shape behavior helps explain why aggression linked to this MAOA variant could be advantageous. The MAOA gene influences how neurotransmitters are broken down, and a lower-activity version can lead to more reactive aggression when someone faces threat or stress. In ancestral environments, being more aggressive could help with securing resources, defending kin and territory, and increasing social status—outcomes that can boost access to food, mates, and protective allies. These benefits can translate into greater survival and reproductive success, giving such carriers a potential evolutionary edge. That’s why the idea that they may be better hunters, protect their family, and gain higher status fits best. The other options don’t align with how this gene variant is thought to influence behavior or fitness.