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Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

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By definition, when a medication is administered intravenously, its bioavailability is 100%.

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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

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Thyroid conditions may make getting pregnant impossible.

Negative control of a repressible set of genes: function of the trp repressor and corepressor in reg Negative control of a repressible set of genes: function of the trp repressor and corepressor in reg
negative feedback negative feedback
Reinforcement and Punishment Reinforcement and Punishment
Negative feedback control of a regulated variable. Negative feedback control of a regulated variable.
Positive and negative selection during T-cell development. Positive and negative selection during T-cell development.
Positive and negative selection during T-cell development. Positive and negative selection during T-cell development.
Video: Studying the Left and Right Brain Independently

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