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health advisory Hospital Doctor Yu 2007-11-8 19:08:59

I mean why are some people born with ear lobules not attached to their heads along with the rest of the ear, i have non attached lobules but my friend has it the other way. Is this because of ethnicity?,a usual mistake in our genetic disposition or just mere luck? do I need to make it clearer?

Answers:

I believe the dominant gene is for non attached ear lobes. It is a imple case of genetics where you must carry the a double recesive gene in order to have attached ear lobes. This may also be a case of more complicated genetics than one simpel gene, but the basis of why some people have them and some don't is genetics, just like eye color. This probably means that some races or ethnicities have higher rates of one or the other form.

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The ear lobule attachment is due to autosomal recessive gene. It shows Mendelian pattern of inheritance in humans.

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it's a gene thing and also an intelligence thing and also can predict heart disease and life span.

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