Respuesta :
The communal antecedent of human being and chimpanzees had 24 pairs of chromosomes and at some fact in the heredity two chromosomes bonded end to end in which provided that nearly discerning benefit. In addition to biology, in humans the embryotic cell and fetal forms of hemoglobin have higher affinity for oxygen than of adults. This is in line to non -identical genes that yields dissimilar versions of the globin throughout fetal progress.