For example, just in the field of embryology, the Quran is incorrect regarding spermatogenesis, asserting that semen is produced between a man’s backbone and his ribs (86.7). In the hadith, we find a case that is very telling: A man asked Muhammad to prove that he is a prophet by correctly answering questions.34 One of the questions inquired why a child might look like his father more than his mother, or vice versa. Muhammad responded that Gabriel had informed him of the answer to his question: The first parent to have discharge during intercourse determined the appearance of the child.
