21.   It was almost believable that this duet formed on a molecular level.

22.   Kimura worked in population genetics and evolution at the molecular level.

23.   Laughlin challenged biologists to double-check some of their classic experiments used to explain how DNA works at a molecular level.

24.   Magnets may somehow trigger the healing action of cells at a molecular level, changing the oxygen and nutrient level of the tissue.

25.   Moreover, new technologies analyze scents on a molecular level easily and cheaply, letting a growing industry of fragrance makers reproduce and sell them to businesses.

26.   Not just describe it on a molecular level.

27.   Now, using X-ray crystallography, researchers from the University of British Columbia have shown what happens at a molecular level when the bacteria bind to intestinal cells.

28.   Rather than hide a tenuous chemical suggestion that basic life might exist on the molecular level on Mars, NASA last August hyped the discovery to the moon.

29.   Researchers are learning how genetic mutations create minute differences in how cells work at the molecular level.

30.   Sex at a molecular level is spawning an elite class of proteins.