A spectrometer is an tool commonly used by astronomers which splits the light collected by a telescope into its colors.This allows astronomers see the details in the light from space. spectrometer is an tool commonly used by astronomers which splits the light collected by a telescope into its colors.
This is an emerging area of study, developing from Mendelian genetics through to the modern science, which can now accurately track genetic histories of populations. Examples of Gene Flow: Genetic heritage mapping
Some simple examples of where gene expression is important are: 1  Control of insulin expression so it gives a signal for blood glucose regulation. 2  X chromosome inactivation in female mammals to prevent an overdose of the genes it contains. 3  Cyclin expression levels control progression through the eukaryotic cell cycle.