Which of the following statements is true with regard to recombinant DNA?

a
Recombinant DNA can only be found in fungal cells.
b
Recombinant DNA is used to produce hundreds of other DNA products.
c
Recombinant DNA is always smaller than a typical chromosome.
d
Recombinant DNA is produced by pasting together DNA from two or more sources.

d

Recombinant DNA is produced by pasting together DNA from two or more sources.