The Egyptian hieroglyphic ankh looks kind of similar to the Christian cross. This has lead some conspiracy theorists to argue that Christians copied the ankh for their own religious symbol: the cross.

Figure 2: Genetic map of 5p15.1 and genomic organization of ANKH. Figure 3: Cosegregation of ANKH mutations with the CMD phenotype. All eight families with mutations in ANKH are shown. We ...