CBC radio – Quirks and Quarks

Identical twins are incredibly similar – which makes sense, since they have precisely the same genes. But a practiced eye can often find subtle differences. On this program, Bob MacDonald speaks with Tim Spector who explains how the new science of epigenetics can produce twins who are “Identically Different”.

The show “Quirks and Quarks – Identically Different:  The Science of Epigenetics” can be heard at the CBC website by

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