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Tag: "rich" at biology news

Amino acids in nectar enhance butterfly fecundity: A long awaited link

...ly caterpillars on both nitrogen poor and nitrogen rich stinging nettle. After the butterflies emerged, they were fed nectar with or without amino acids. Butterflies raised under natural, nitrogen poor larval food conditions laid more eggs when fed nectar containing amino acids. These results provide the...

An HIV Protein Plays a Surprising Role in Gene Activation

...) on the gene's promoter, where it binds to region rich in thymine (T) and adenine (A) named the TATA box. The first transcription factor to associate with the TATA box is called TFIID, a large protein complex containing a protein that binds the TATA box (aptly named the TATA-box-binding protein, or TBP) ...

Growth in the sea comes down to a struggle for iron

... readily. Since prevailing winds tend to blow iron rich dust off the Asian continent into the Pacific, it may be that phytoplankton closer to the source of that dust may be primed to respond differently. Wells and his colleagues will be studying the possibility that small variations in iron throughout th...

University of Manchester makes made-to-measure skin and bones a reality using inkjet printers

... the printer, the cells are suspended in anutrient rich liquid not dissimilar to ink, which ensures theirsurvival. The cells are then fed into the printer and seeded directlyinto the structure as it is built. This avoids any 'sticking to thesurface' which is a major disadvantage of current methods that in...

Scientists ID molecular 'switch' in liver that triggers harmful effects of saturated and trans fats

... explains, for the first time, how consuming foods rich in saturated fats and trans-fatty acids causes elevated blood levels of cholesterol and triglycerides and increases one's risk of heart disease and certain cancers. In the Jan. 28 issue of Cell, scientists led by Bruce Spiegelman, PhD, report that t...

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