Statement is correct: Genetic engineering directly modifies an organism's genome using biotechnology to alter its traits, behaviors, and overall performance.

Statement is correct: Techniques like the Polymerase Chain Reaction (PCR) or gene cloning are fundamental to genetic engineering to produce millions of identical copies of a specific DNA fragment.

Statement is correct: Recombinant DNA technology allows scientists to isolate specific target genes and replicate them numerous times within a host vector.

Statement is correct: Genetic engineering can attach powerful promoters or eliminate regulatory blockers to significantly enhance or overexpress a specific protein or gene product (such as commercial human insulin production in bacteria).

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