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Biological research into the cause of eating disorders has found some evidence for a genetic or hereditary component based on the finding that, if one identical twin suffers from anorexia nervosa, the other twin will also develop this disorder in as many as _____ percent of cases. The concordance rate for fraternal twins, on the other hand, is only around 20 percent.

Respuesta :

Histrionicus

Answer:

The correct answer is 70%.

Explanation:

Eating disorder or binge eating is a psychological problem however anorexia nervosa an eating disorder runs in families too. It indicates that it has something to do with genetic or intercity component. Recent researchers have found 2 genes involved in determining the chances of acquiring the eating disease. It suggests that genes have also an important role in such cases. Research on twins found that 70% chances to develop the case in other twin.

Thus, the correct answer is 70%.

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