DNA+NOtesBH

--> DNA--> structure, base pairing, copying --> DNA probe --> electrophesis --> PCR (polymerase chain reaction) method used to make multiple copies of a specific segment of DNA Step :1-->

Denaturation: it untwist and the primers atttach nad make copies

heat briefly to seperate DNA strands

Annealing: cool allow primers to form hydrogen bond with ends of target sequence

Extension: DNA polymerase adds nucleotides to 3rd end of each primer

PCR helps DNA fingerprinting--> they'll make copies of it to identify the person.

relies on a very small amount of DNA

it multiplies DNA so that they have enough to study.

primer tack polymerase and al the bases you need. -> primer duplicates the DNA at a specific point

you put everything you need on the machine and you mix it all together. (pulls out the amount that he needs and shoots it into the test tube.) --> a process of heating and cooling.. and the conditions in which the primer will make the strands duplicate. primer--> 3-5 primer--> 5-3

electrophorisis purifies the DNA..

--> STR (short tandum repeats)

--> VNTR