Once scientists have zeroed in on a specific segment of DNA, how do they produce enough copies of that segment for their research? In most cases, the polymerase chain reaction, or PCR, is their ...

How does DNA recombination work ... (Note that a third model of recombination, synthesis-dependent strand annealing [SDSA], has also been proposed to account for the lack of crossover typical ...

PCR involves the enzymatic amplification of nucleic acid templates, and can be divided into four major steps, listed below. 1 Denaturation: Double-stranded DNA separates into single strands. Annealing ...

Because DNA's makeup is determined by a simple set ... This generative design process called shape annealing was pioneered by Jon Cagan, professor of mechanical engineering.

which melts double-stranded DNA into single strands; annealing, which lets small pieces of primer DNA bind to either side of the region of interest; and elongation, where the enzyme DNA polymerase ...