Tag: "brown" at biology news

Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

...ent by Schweitzer, arrived in the form of a gritty brown powder that had to be rid of contaminants. Using techniques and tricks perfected while working on the mammoth sample, Asara purified the protein, identified as collagen, and, with the enzyme trypsin, broke it down into fragments, or peptides, 10 to 2...

How appetite-stimulating brain cells work overtime during fasting

... regulation of body temperature by heat-generating brown fat. The molecular underpinning of heat production, or thermogenesis, in brown fat is the activation of mitochondrial uncoupling protein 1 (UCP1) by T3, the researchers said. The ...

Cornell lab confirms deadly fish virus spreading to new species

...hern pike, walleye, yellow perch, channel catfish, brown bullhead, white perch, white bass, emerald shiner, bluntnose minnow, freshwater drum, round goby, gizzard shad and burbot. Roughly 1,600 fish have been tested at Cornell since May 2006. Bowser suspects the virus may have originated from an infected m...

Moths mimic sounds to survive

...Monarch. The two species of bats used were big brown bats and red bats. Barber raised the bats in the lab so behavior learned in the wild would not influence the results of the experiment. Barber said anecdotal observations have suggested that animals such as snakes, owls and bees use acoustic mim...

Potato wart eyed as risk to potato production

...growths that initially appear white, and then turn brown or black as they decay, rendering the potato tuber unrecognizable and inedible. There is a zero tolerance for the fungus that causes potato wart. As a result, this disease has been placed on the USDA’s "Select Agent List" of plant pathogens deeme...

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