Based on Hamilton's Rule, an Individual is Most Likely to Help

Question

Based on Hamilton's rule, an individual is most likely to help which of the following?
A) Niece
B) Cousin
C) Sibling
D) Uncle
E) Grand-offspring

Accepted Answer

Hamilton's rule states that an individual is more likely to help relatives with whom they share a greater proportion of genes. Siblings share on average 50% of their genes, which is typically higher than the genetic share with nieces, cousins, uncles, or grand-offspring, making them the most likely to be helped according to this rule.