The sciencemag.com article “Anti-Alzheimer’s Gene may have Led to the Rise of Grandparents” by Kelli Whitlock Burton talks about the how the protective variant of the CD33 gene may explain why humans have grandmothers that help with child rearing. The article explains the “grandmother hypothesis” that says humans live such long and healthy lives even after they are no longer able to reproduce because they help with child rearing. The CD33 gene plays a big role in Alzheimer’s disease and scientists Ajit Varki and Pascal Gagneux discovered that there are two variants of it: a protective allele and a damaging one. Varki and Gagneux studied humans and chimpanzees to learn more about the gene’s lineage. Their
The sciencemag.com article “Anti-Alzheimer’s Gene may have Led to the Rise of Grandparents” by Kelli Whitlock Burton talks about the how the protective variant of the CD33 gene may explain why humans have grandmothers that help with child rearing. The article explains the “grandmother hypothesis” that says humans live such long and healthy lives even after they are no longer able to reproduce because they help with child rearing. The CD33 gene plays a big role in Alzheimer’s disease and scientists Ajit Varki and Pascal Gagneux discovered that there are two variants of it: a protective allele and a damaging one. Varki and Gagneux studied humans and chimpanzees to learn more about the gene’s lineage. Their