Sentences with phrase «chemical markers called»

Our genome is «programmed» by the addition of chemical markers called methyl groups to the DNA, which shut down genes.

Not exact matches

The researchers — James Robl, a developmental biologist and his colleagues at the University of Massachusetts at Amherst, and Steve Stice at Advanced Cell Technology in Worcester, Massachusetts — inserted a marker gene fused with a gene for resistance to the chemical neomycin into a culture of connective tissue cells called fibroblasts.

These markers, called crotonylations, were only discovered recently and are a new addition to the chemical annotations in the genome that are collectively called epigenetic markers.

After the pollutants are recorded, the next step is to look for biological signs of chemical exposure, which she calls markers.

The Imager has a spectrograph that separates light out into its constituent colors, and these so - called spectra bear markers of the chemical elements in a planet's atmosphere.

When the offending food, called an allergen enters the blood stream and meets its IgE marker, it triggers the release of chemicals including histamine that cause the classic symptoms of allergy - skin rashes, hayfever, rhinitis, sinusitis, asthma, eczema, swelling in the face or throat and anaphylaxis.

Cat poop may all smell the same to us, but cats can tell their waste apart from another's thanks to unique chemical scent markers called pheromones, which are present in their urine and feces.