What is the coefficient of relatedness between a haplodiploid female worker bee and a male drone in the same hive, if they do not have the same mother?

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Quizplus · Accepted Answer

Haplodiploid organisms, such as bees, have a different coefficient of relatedness than diploid organisms. In haplodiploid systems, females have a diploid set of chromosomes (one from each parent) while males only have a haploid set (from their mother). This means that female worker bees have average relatedness of 0.75 with their sisters, but only 0.25 with their brothers (male drones). If the female worker bee and male drone do not have the same mother, then they are not related at all and the coefficient of relatedness is potentially zero.

What Is the Coefficient of Relatedness Between a Haplodiploid Female