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Showing posts with label Anatomy and Physiology. Show all posts
Showing posts with label Anatomy and Physiology. Show all posts

4/19/11

Is albinism a recessive gene?

Albinism is a "recessive trait", so even if only one of the two copies of the OCA gene is functional, a person can make pigment, but will carry the albinism trait.

What are catecholamines?

Catecholamines are sympathomimetic "fight-or-flight" hormones that are released by the adrenal glands in response to stress.