AiG has long pointed out the fallacy of this statement, which seems to be more popular with dishonest skeptics who want to caricature creation. The removal of a rib would not affect the genetic instructions passed on to the offspring, just as a man who loses a finger wouldn’t have sons with nine fingers. Any skeptic who tries to discredit the Bible with this argument must be a closet Lamarckian, i.e., one who believes Lamarck’s thoroughly discredited idea of inheritance of acquired characteristics! Note also that Adam wouldn’t have had a permanent defect, because the rib is the one bone that can regrow if the surrounding membrane (periosteum) is left intact.