How do scientists construct recombinant DNA molecules?

by using RNA from plants

by combining the proteins from two different organisms

by combining the DNA of two different organisms

by combining the RNA of two different organisms

by combining the DNA of two different organisms

Explanation:

Recombinant DNA is when researchers edit a gene to contain a novel sequence, such as one from another organism

A good example of this in the lab is when scientists combine genes with a fluorescent gene called green fluorescent protein, GFP. This is from jellyfish. The gene sequence can be tracked on to the end of a gene of interest in a cell population or organism. When the gene is transcribed and translated, the GFP sequence will also be transcribed and translated. This means it will be fluorescent green and easy to track and visualise in cells.