This video looks at how the sex of an offspring is determined in humans and other organisms. The role of genetics is the most important factor for some but not all. In some species external factors such as temperature are the determining factor. (5:45 min.)

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DNA Day experts answer your questions about heredity and health . Learn More about DNA Day.

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DNA Day experts answer your questions about Epigenetics. Learn More about DNA Day.

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Ever wondered how Harry Potter was lucky enough tobe born with magical powers? It may be as simple as classical genetics.

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About 250,000 people in Canada have glaucoma and only half of them know it!

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This is the first article in a series that looks at the scientific or medical basis for the defining features of several horror movie favorites. Our first "victim" will be the Wolf-Man.

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Did you ever wonder why you have the same allergies as your father? Or questioned whether you really would eventually turn into a worry-wart like your mother?

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Both humans and the apes at the zoo are descendant from a common ancestor species. So in a sense, we both share an extremely distant relation.

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Cancer is linked with genetics and genetics is linked to heredity, which is why some people assume that all cancers are inherited. But the truth is, only about 10 percent of cancers are hereditary.

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Some people write with their right hand, others write with their left. Haveyou ever wondered about people that can write with both hands? These people are known as ambidextrous.

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