Sentences with phrase «serving as negative controls»

(A) GUS activity with and without 10 µm of the TNT ligand in paired leaves from transgenic plants serving as negative controls and transgenic plants containing the complete signal transduction system.

The left hind footpad served as a negative control and was injected with 25 μl of HBSS without cells.

Not exact matches

Sabet, who worked in the White House's Office of National Drug Control Policy during President Obama's first term and serves as director of the Drug Policy Institute at the University of Florida, said the negative consequences of marijuana legalization include advertising aimed at kids, an increase in drugged - driving incidents and a spillover of marijuana from Colorado into surrounding states, where the drug remains illegal.

May serve as a CD4 negative control.

In all negative tumors, occasional positive tumor cells or coexisting reactive lymphocytes were present and served as internal positive controls (arrows in C, right).