Examlex
The radioactivity of a sample of air obtained from a basement containing radon-222 was found to be 8 pCi/L.This isotope has a half-life of 3.8 days.If no additional radon-222 entered the basement, how long would it take for the activity to decline to 1 pCi/L?
Animal Models
Non-human species used in research and experiments to understand biological processes and diseases affecting humans.
Gene Targeting
A molecular biology technique that uses homologous recombination to modify the genome of an organism at a precise location.
Fluorescent Dyes
Chemical compounds that absorb light at one wavelength and emit it at another, used to stain and visualize biological molecules or cells under a microscope.
Microarray
A laboratory tool used to detect the expression of thousands of genes at the same time, allowing researchers to understand complex genetic processes.
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