Question

Consider the following argument:

Altruistic behavior in groups of related individuals is most likely driven by kin selection since related individuals would share DNA.

Which of the following pieces of evidence would be most likely to weaken this argument?

(1 point)

Data showing that the more frequent an allele of a gene occurs in a population, the more likely that population performs altruistic behaviors

Data showing that food gifts are given more commonly among family members than between unrelated individuals in a group

Data showing that individuals that share a higher percentage of DNA in a group tend to show the most altruistic behavior between themselves

Data showing that only distantly related individuals are most likely to perform altruistic behaviors in order to protect each other

Answer 1

"Data showing that only distantly related individuals are most likely to perform altruistic behaviors in order to protect each other."

Reason: kin selection predicts altruism should be directed toward close relatives who share more genes. If altruism occurs primarily between distantly related individuals, that contradicts the kin-selection explanation. The other options either support kin selection (gifts among family, more altruism between genetically similar individuals) or are ambiguous.