04+Polymerase+Chain+Reaction

Polymerase Chain Reaction can prepare large copies of DNA that are scarce or scanty very quickly. It can make billions of copies of DNA in a few hours, much faster than the genomic libraries. With each cycle, it yields double number of molecules, so if the first one yields one, the second one yields two, the third one yields four, the fourth one yields eight and so on and so forth.
 * __ Description: __**

During each of the three processes the reaction mixture is heated so the DNA strands will separate and then cooled to allow the hydrogen bonding to from short, single-stranded DNA primers. The primers are complimentary to sequences of on opposite strands of each end of the target sequence. Now a heat-stable DNA polymerase extends the primers in the 5' to 3' direction.
 * __ Analyze: __**

Polymerase Chain Reaction can be used in forensic testing, paternity testing, pretty much anything where one needs to amplify the amount of DNA. Like for forensic testing, they need to know who the victim was (if they are beyond identification) and who did it. So if they have a small amount of DNA and they can’t do any testing by it, they need to make more of it, amplify it so they can tell who it is. Same thing for paternity testing.
 * __ Apply: __**

It makes me think of learning multiplication in the third grade. I remember learning how to double everything, and keep doubling until we reached the number we wanted.
 * __ Synthesize: __**

I am for PCR because it will allow us to copy thousands of more genes so much faster. With this doctors wouldn’t have to wait as long to get their desired genes as they would with other methods, with will have it quicker.
 * __ Argue For Or Against: __**

Sources: AP Biology book, eighth edition Notes from Mr. Kromann's BioMedical class