Question

Which gel, the genomic DNA or the PCR products would you add ethidium bromide to, and which gel would you stain in an ethidium bromide bath? Explain why you would make these choices?

Answer 1

Ethidium bromide should be added to the PCR products gel and the genomic DNA gel should be stained in an ethidium bromide bath.

Step-by-step explanation:

Ethidium bromide (EtBr) should be added to the PCR products gel. EtBr is a fluorescent dye that binds to DNA and allows for visualization of the PCR products on the gel. The PCR products are usually stained with EtBr before gel electrophoresis to ensure that they are clearly visible.

The genomic DNA gel, on the other hand, would be stained in an ethidium bromide bath after gel electrophoresis. This allows for the visualization and analysis of the genomic DNA fragments on the gel.