13Stain for DNA.What is fluorescence?Energy of light is inversely proportional to the wavelength. For example, violet light has higher energy than red light.Fluorescent molecules are special molecules that absorb incident light of a particular wavelength then emit light of a longer wavelength. The absorption of light causes electrons in the molecule to become highly energetic. When the highly energetic electrons return to their original state, they emit light. Wave length of incident light must be shorter than the wavelength of emitted light since some energy is unavoidably lost as heat.
381090 cells, 131 die, leaving 959 in adult. Idea: It might be possible to trace the developmental lineage of every single cell in the adult wormZygoteJohn Sulston1090 cells, 131 die, leaving 959 in adult.