Rapamycin was heralded as a drug with substantial promise and first isolated from a soil sample at select one: a. fda b. ayerst laboratorie c. nih d. elysium

 The correct answer is :  b. Ayerst Laboratorie

Explanation:  Samples were taken from several plots of the soil of Easter Island. In 1969, all samples were delivered to the Ayerst research site in Montreal. It was there that they discovered that there was a bacterium that had the ability to produce rapamycin, which is a compound that has many medicinal properties.

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explanation:

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