Answer :
Heritability estimates based on twin studies are likely over estimated, while heritability estimates based on broader family relationships are likely under estimated.
What is heritability?
Heritability measures the difference in an individual physical expression that is associated with the gene that is inherited.
Heritability be broad sense or narrow sense depending on where the gene is inherited from.
Heritability estimates based on twin studies are likely over estimated while heritability estimates based on broader family relationships are likely under estimated.
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