Recombinant DNA technology is a set of molecular methods used to isolate, manipulate, and study DNA.
What does recombinant mean, in this case?
a. that the DNA used is often derived from two or more sources and combined
b. that the DNA used was cut with restriction enzyme or enzymes
c. that the DNA used does not contain introns
d. that the DNA used was edited using the CRISPR-Cas system
e. that the DNA used has undergone homologous recombination