What term describes DNA formed by combining constituents from different organisms?

What term describes DNA formed by combining constituents from different organisms?

• A. Synthetic DNA
• B. Hybrid DNA
• C. Transgenic DNA
• D. Recombinant DNA

Answer: (D)

Combining DNA from different organisms creates recombinant DNA. This engineered molecule is formed by cutting DNA from each source and joining the fragments into one continuous DNA molecule, often carried on a plasmid, so it contains sequences from multiple species. This is the foundation of genetic engineering and enables the expression of new genes in a host cell, like producing human insulin in bacteria. Synthetic DNA is DNA built entirely from chemical synthesis, not assembled from existing organisms. Transgenic describes an organism that carries foreign DNA, not the DNA molecule itself. Hybrid DNA isn’t the standard term for this concept.

Combining DNA from different organisms creates recombinant DNA. This engineered molecule is formed by cutting DNA from each source and joining the fragments into one continuous DNA molecule, often carried on a plasmid, so it contains sequences from multiple species. This is the foundation of genetic engineering and enables the expression of new genes in a host cell, like producing human insulin in bacteria. Synthetic DNA is DNA built entirely from chemical synthesis, not assembled from existing organisms. Transgenic describes an organism that carries foreign DNA, not the DNA molecule itself. Hybrid DNA isn’t the standard term for this concept.