Forensics C

[terryokay]

Here are my questions:
1) What bacteria is taq polymerase derived from?
2) Why do flame test emit colors. Describe in detail.
3) What fiber commonly undergoes mercerization?

Click to Show Answer

1. Thermus aquaticus
2. Solids cause the flame to emit colors because the heat energy flame causes the electrons in the solid to enter an excited state, which causes them to move to energy levels farther from the nucleus. The difference in energy creates an emission of photons that fall under different areas of the visible light spectrum, which is responsible for the different colored flames that can be seen during a flame test.
3. cotton 

Great Job!

[azboy1910]

Alright, here’s my set of questions:

1. Explain why sodium chloride is conductive when dissolved in water.
2. What fibers from the rules list dissolve in bleach?
3. Explain the purpose of PCR in the context of a crime scene investigation.