Research suggests that grandparent’s prefer grandchildren with whom they share the most DNA.
The study explains the phenomenon that grandmothers often prefer their granddaughters than their grandsons. This is because a woman passes around 31 percent of her genes to her son’s daughters but just 23 percent to her son’s son.
“A father transmits his Y chromosome to his sons and his X chromosome to his daughters,” said Dr. Urban Friburg of the University of California.
“This X chromosome usually comes from his mother, so means his daughters have more in common with her and the grandmother has a natural bias,” he continued.
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Terrific work! This is the type of information that should be shared around the web. Shame on the search engines for not positioning this post higher!
[...] Explaining Grandparent’s Favoritism | sarahness [...]
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[...] Explaining Grandparent’s Favoritism | sarahness [...]
Terrific work! This is the type of information that should be shared around the web. Shame on the search engines for not positioning this post higher!
great post as usual!