The gene relationship most likely to result in a portion of offspring that are all recessive males would involve X-linked recessive inheritance. In this scenario, if a male inherits a recessive allele on the X chromosome from his mother (who may be a carrier or affected), and the father contributes a Y chromosome, the male offspring will express the recessive trait. If the mother carries two recessive alleles on both X chromosomes, all male offspring will inherit the recessive trait, resulting in a population of recessive males.
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