What is pcr, Biology

Assignment Help:

What is PCR? How does PCR works?

PCR, polymerase chain reaction, is a process to synthesize many copies of exact regions of a DNA molecule known as target-regions. Its inventor, Kary Mullis, won the Nobel prize for Chemistry in 1993.

First, the DNA to be tested is heated to cause the double helix to rupture and the polynucleotide chains to be exposed. Then small synthetic sequences of DNA called as primers and containing nucleotide sequences similar to the sequences of the extremities of the region to be studied (for example, a region containing a called gene exclusive of a given organism) are added. The primers paired with the original DNA in the extremities of the gene to be amplified. Enzymes called as polymerases, that catalyze DNA replication, and nucleotide supply are added. The primers then are completed and the chosen region is replicated. In the presence of more primers and more nucleotides millions of copies of that specific region are produced. (PCR is very sensitive even using a minimal amount of DN.

 


Related Discussions:- What is pcr

How sugar is used in custards, How Sugar is used in Custards? While flo...

How Sugar is used in Custards? While flour protein forms the structure of baked goods, custards are composed of egg protein structures. If the egg white solidifies too early al

Disorders of female reproductive system, DISORDER S OF FEMALE REPRODUCTIVE...

DISORDER S OF FEMALE REPRODUCTIVE SYSTEM - (i)         Sterility (ii )     Menstrual irregularity - This may be amenorrhea (absence of M.C.) or excessive bleeding (

Consequences of population growth, T he effects of unlimited population gro...

T he effects of unlimited population growth are as follows: 1.         Increase in unemployment. 2.          Low per capita income. 3.         Low living standard

Ant-nutritional factors limiting their optimum use, Ant-Nutritional Factors...

Ant-Nutritional Factors Limiting their Optimum Use The anti-nutritional factors (ANFs) are non-fibrous natural substances which occur as natural constituents of plants and anim

Determine different varieties of the same phenotypical trait, For an indivi...

For an individual having a genotype formed of two different alleles that condition different varieties of the same phenotypical trait, upon what will the phenotypical feature actua

Are the extraembryonic membranes the same in all vertebrates, Q. Are the ex...

Q. Are the extraembryonic membranes the same in all vertebrates? The presence of each extraembryonic membrane differs according to the vertebrate class. In amphibians and fi

Describe about mixed type of ta pvc, Describe about Mixed Type of TA PVC ? ...

Describe about Mixed Type of TA PVC ? Management depends upon the type of TAPVC and could be very challenging. However the basic principle is to get all the pulmonary veins to

Define recommended dietary allowance for folate (rda), Define Recommended D...

Define Recommended Dietary Allowance for Folate (RDA)? Folate requirements are the intake levels necessary to prevent deficiency with clinical symptoms. The requirements are ex

Which term explains flow characteristic of blood, Which of the below terms ...

Which of the below terms is used to explain the study of factors which influence flow characteristics of blood as it moves through the body? Is it: a) Anginology b) Hemodyna

Precaution for quantitative determination of viable microbes, Define Precau...

Define Precautions for Quantitative Determination of Viable Microbes? 1. Dilution should be made carefully. 2. Use fresh sterile pipette for making each dilution. 3. Asep

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd