Question

this is the practice of inserting the dna of another species into an organisms dna so that the organism gains a new trait.
genetic engineering
gel electrophoresis
cloning
dna fingerprinting

Explanation:

Genetic engineering involves manipulating an organism's DNA by inserting DNA from another species to introduce a new trait. Gel electrophoresis separates DNA fragments. Cloning creates identical copies. DNA fingerprinting identifies individuals by their DNA patterns.

Answer:

Genetic Engineering