According to the dominance hypothesis of heterosis, which one of the following is a false statement?

Explanation: The false statement is - Inbreeding, depression is due to the harmful effects of dominant alleles. The dominance hypothesis was proposed by Charles Davenport (1908), which is the most widely accepted hypothesis among the other explanations for heterosis. As per this hypothesis, heterosis results due to the superiority of dominant alleles over the deleterious recessive alleles by masking their effect, and heterosis is in direct proportion with the number of dominant genes contributed by the parent.