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What is the approximate heritability of male horn

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A biologist observes a population of horned beetles. Males have ornamental horns, and females prefer mates with longer horns. In one generation, males have a mean horn length of 3 cm, but the males who find mates and father offspring have a mean horn length of 5 cm. In the next generation, the sons of those males have a mean horn length of 3 cm, as shown in the figure below. What is the approximate heritability (h2) of male horn length and why?

Reference no: EM132490236

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