endogamy

But crucially, Prof Oddie thinks the main risk to genetic health in Bradford is not cousin marriage, but a similar issue known as endogamy, in which people marry members of their close community.

“You can see writ in the genome the effects of this intense endogamy,” Dr. Reich said.

Research has given conflicting answers about the trend in educational endogamy in the United States, Potarca says.

The tribe practices clan endogamy, the practice of marrying within the clan.

If endogamy begins to break down, the caste order will break down.