Making Recombinant DNA
Combining DNA Pieces
What Recombinant DNA Means
Recombinant DNA is DNA made by joining genetic material from different sources. For example, a useful gene from one organism can be placed into a plasmid and then introduced into another cell.
Why It Is Useful
If the recipient cell can read the inserted gene, it may make a desired protein. This is one way engineered microbes can produce medicines, enzymes, or other products.
Recombinant DNA Steps
Real-World Example
Bacteria have been engineered to make human insulin, allowing large-scale medicine production.
What is recombinant DNA?
Recombinant DNA combines genetic material from different sources into one molecule.
Correct answer: DNA made by joining DNA from different sources
Why put a gene into a plasmid?
A plasmid can act as a vector that helps deliver DNA into cells.
Correct answer: To help carry the gene into a cell
What is a vector in genetic engineering?
A vector is often a plasmid or virus used to move DNA into a host cell.
Correct answer: A carrier used to deliver DNA into cells.
Why do scientists check expression after inserting a gene?
A successful insertion is not enough; the gene must also function properly.
Correct answer: To see whether the cell is actually using the gene.