CYB5R3 the subsequent disease manifestation have been described. The disease manifests as the accumulation of oxidized Fe+3 in humans. Type I recessive congenital methemoglobinemia (RCM) is characterized by a deficiency of the soluble isoform and manifests as the cyanosis of skin and mucous membranes. In type II, the defect affects both isoforms and thus affects more general tissues such as red blood cells, leukocytes, and all body tissues. This type is associated with mental deficiency and other neurologic symptoms, which may be because the cytochrome b5 system plays a crucial role in the desaturation of fatty acids in the body. One
Neoteny in humans body is indicated by glabrousness (hairless body). Neoteny of the genitals is marked by the absence of a baculum (penis bone); the presence of a hymen; and the forward-facing vagina. Neoteny in humans is further indicated by the limbs and body posture, with the limbs proportionately short compared to torso length; longer leg than arm length; the structure of the foot; and the upright stance. Humans also retain a plasticity of behavior that is generally found among animals only in the young. The emphasis on learned, rather than inherited, behavior requires the human brain to remain receptive much longer. These