Kangas joined Nightly Business Report in 1979; in 2003, his Stocks in the News segment earned a Financial Writers and Editors Award from the Medill School of Journalism at Northwestern University. In 2005, he won a Suncoast Chapter Silver Circle Award.
What Is a Malpighian Tubule? Malpighian tubules are organs within insects that excrete solid waste. Larvae of certain species of beetles use Malpighian tubules to produce silk.
Colchicine inhibits microtubule polymerization by binding to tubulin, one of the main constituents of microtubules. Availability of tubulin is essential to mitosis, so colchicine effectively functions as a mitotic poison or spindle poison.The mitosis-inhibiting function of colchicine has been of great use in the study of cellular genetics.vailability of tubulin is essential to mitosis, so colchicine effectively functions as a mitotic poison or spindle poison. The mitosis-inhibiting function of colchicine has been of great use in the study of cellular genetics.