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RBC and Serum Folate

Certainty Style Key
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True   Likely   Speculative
What is MOCA?
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Human Uniqueness Compared to "Great Apes": 
Speculative Difference
MOCA Domain: 
Pathology
MOCA Topic Authors: 
Ajit Varki

The vitamin folic acid can be found in the serum and in red blood cells (RBCs, erythrocytes). These levels can be affected by many factors, including nutritional access, B12 metabolism and ultraviolet exposure to skin. It would be interesting to study these levels in non-human hominids. 

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TitleCertainty
HairlessnessSpeculative
Serum Vitamin B12/B12 Binding CapacitySpeculative
Skin PigmentationSpeculative
Timing

Timing of Appearance of the Difference in the Hominin Lineage.

For this entry assume that

  • the common ancestor of humans and old world monkeys was 25000 thousand (25 million) years ago
  • the common ancestor of humans and chimpanzees was 6000 thousand (6 million) years ago
  • the emergence of the genus Homo was 2000 thousand (2 million) years ago
  • the common ancestor of modern humans was 100 thousand years ago

 

Possible Appearance: 
6000 Thousand Years
Probable Appearance: 
2000 Thousand Years
Definite Appearance: 
100 Thousand Years