GULO lessons discussion

The GULO gene enables some animals to synthesise their own Vitamin C internally. Humans have the gene, but it is broken. This is easily explained by an evolutionary history of humankind, but not by design. See at Common Descent.

Creationist arguments against genetic evidence of human evolution

"β-globin pseudogene"

The Human β-globin locus is a complex of five genes. See at Wikipedia. (Pseudogenes are nonfunctional segments of DNA.)

• The Human Beta-Globin Pseudogene is Non-Variable and Functional — Jeffrey P. Tomkins, Institute for Creation research, Dallas, TX, USA
  • Response by Laurence A. Moran, Professor Emeritus in the Department of Biochemistry at the University of Toronto.