NASA did not invent the smoke detector.
Gel electrophoresis is the movement of charged particles in a fluid or gel under the influence of an electric field. Results of this technique can be interpreted to find out if someone carries a certain gene or not.
The correct answer would be DNA Profiling. When Joe denied being the father of Lisa, Lisa's mom took Joe to the court to prove that he was Lisa's biological father. One way of proving that he's truly the biological father is by undergoing both DNA's into DNA profiling.
Hi~~
Human invasive use of outdoor and artificial lightning (AKA light pollution) has made us less able to see the sky and the stars. Light pollution affects our visual abilities to see objects in the sky by altering the colors and contrast of the night-sky, which makes astronomers less able to study the skies.
