extras

Question 1

how does colorimetry work

Answer 1

passing light of a specific wavelength through a sample and measuring how much light is absorbed. The amount of light absorbed is proportional to the concentration of the analyte in the sample.

Question 2

how does gel electrophoresis work

Answer 2

separates biological molecules based on their size and electrical charge by using an electric current. Negatively charged molecules such as DNA move through a gel towards the positive electrode, with smaller fragments moving further than larger ones.

Question 3

how does polymerase chain reaction work

Answer 3

amplifying specific DNA sequences through repeated cycles of heating and cooling. The DNA is denatured, primers bind to the target sequence, and DNA polymerase builds new strands, producing many copies of the DNA.