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Mystery of the missing breast cancer genes
Date:5/8/2012

e number of grandchildren born, and therefore the chances of passing on the mutated genes from one generation to the next is also limited," Dr da Silva says.

However, the "grandmother effect" does not entirely negate the increased fertility caused by breast cancer genes, he says.

"Our change to today's industrial and technological age has been relatively rapid in human history. For most of our existence, we have been hunter-gatherers. During this time, female fertility was limited, and this may have reduced the increase in fertility caused by mutations of these genes."

Dr da Silva says further studies examining modern-day hunter-gatherer societies might shed more light on how and why the spread of these genetic mutations occurs across generations.


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Contact: Dr. Jack da Silva
jack.dasilva@adelaide.edu.au
61-883-138-083
University of Adelaide
Source:Eurekalert

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