ipl-logo

The Importance Of DNA Barcoding

1499 Words6 Pages

There is enormous diversity in number and types of organisms present on earth. It is estimated that there may be around 10-100million species on earth, but only very small portion of that has been described (May, R. M. 1988). The basic criteria for species identification till last century were morphological characters which estimated approximately 1.7million species on earth. Defining a species is a very tedious task and various ecologists and evolutionary biologists have never agreed on what a species is (M. Blaxter, 2003).
Why we need DNA Barcoding?
Some of the key challenges against today’s society are various crucial biological issues such as the conservation of biodiversity, to ensure biosecurity and to limit bio piracy. The accurate biological …show more content…

But, in DNA barcoding the molecules have been used on a large scale and standardized for the first time. DNA barcoding has created some controversies in the taxonomy. Some taxonomists argue that DNA barcoding is not same as DNA taxonomy. Traditional taxonomists use multiple traits to delineate species. However, DNA barcoding is based upon a single region in the genome (e.g. CO1 in animals) which renders DNA barcoding unreliable and prone to errors in species identification (DasMahapatra and Mallet, 2006). This implies that not a single gene is adequate for DNA barcoding of all organisms. DNA barcoding does not depict the tree of life. The clusters generated by DNA barcodes do not represent phylogenetic trees. In plants, complex evolutionary processes such as hybridization and polyploidy are very common; due to which species are very hard to delineate via DNA …show more content…

BOLD (Barcode of Life Data Systems) – BOLD is an assembly of a reference library of barcode sequences which assembles molecular, morphological and distributional data. It provides online platform for analyses of DNA sequences. It is a repository for the specimen and sequence records that form the basic data unit of all barcode studies. It aids the management, quality assurance and analysis of barcode data and provides a platform for collaboration across research communities worldwide by joining flexible security and data entry features with web-based delivery (S. RatnaSingham and P. D. N Hebert, 2007; http://www.barcoding.si.edu, www.Boldsystems.org

Show More
Related
910 Words | 4 Pages

DNA from the actual parents - Use these chromosomes to make a baby for the DNA profile. Sample D D 248 BP___TPOX #2 Pater. Chromo D 145 BP_D5

Read More
1034 Words | 5 Pages

Introduction Our world is composed of many bacteria’s’ that can either help or destroy us. Therefore, its’s imperative to learn and study them. The purpose of the lab was to put into action the methods that have been learned in the laboratory to determine our unknown bacteria. Bacteria’s can have different features, shapes, and or arrangements that help microbiologist determined their role in our life (whether they are good or bad for humans).

Read More
761 Words | 4 Pages

Do you believe that we should change human DNA and genes to make “better” people? I think that the answer really depends on what you are changing or trying to make better about a person. If the person has a genetic deformity, then the answer would be yes. You should try to help that person to be “better”. If we are talking about a person who is normal, that wants to be better at a sport or a talent then the answer would be no.

Read More
547 Words | 3 Pages

Statement of the Problem DNA has become a vital part of criminal investigations. DNA can include and exclude suspects of criminal investigations. During a criminal investigation, all DNA should be collected, properly preserved and tested, but at times this does not occur or the technology was not available for this process to occur. In addition, DNA has become an imperative portion of exoneration cases.

Read More
1726 Words | 7 Pages

DNA Fingerprinting Using Agarose Gel S. Aaron Sowards Bio 122 Lab 04 Brianna Adanitsch Jakob Lester Minhenga Ngijoi 2/21/18 Dr. Chad R. Sethman Abstract DNA fingerprinting is the process of analyzing an individual’s DNA base-pair patterns. The DNA fingerprinting lab involved identifying the suspect using Agarose Gel and Polymerase Chain Reaction. It was found that suspect two s DNA matched the crime scene DNA.

Read More
728 Words | 3 Pages

Forensic dna has bad unfair effects on society, that falls into social justice, framing innocent people. Dna forensics can help solve crimes and put unlawful people and criminals to jail, but can also be used to frame people/mistake dna into incriminating innocent people. Forensic dna is a science that uses genetic material in criminal investigation/crime scenes to help solve and profile crime scenes. Scientist can use a single strand of hair, fingerprint, or nail to solve who was at the scene.

Read More
644 Words | 3 Pages

Organisms are astonishing pieces of art created amidst chaos. The scope of biology is unlimited; the element of wonder is inexhaustible; the possibilities for

Read More
570 Words | 3 Pages

The combining of dinosaur and frog DNA also has flaws in it. It would almost be like using a piece from many different puzzles to create the same picture. Frog DNA might also not be the best choice. Sure, they’re reptilian, however studies have shown that dinosaurs would evolve into birds instead. While a insect is in DNA, the insides would be the only thing decaying while the years went on.

Read More
1605 Words | 7 Pages

This means there should be multiple significantly morphologically different creatures between a cow and a whale with several being termed new species (due to the differences being considered significant enough to deem them so). “Significantly morphologically different” implies that it is not the

Read More
1095 Words | 5 Pages

D Assessment DNA technology Forensic testing 24.11.2014 Marius Martinsen 10D Introduction: I have chosen to investigate Forensic testing, it is also known as DNA profiling or genetic fingerprinting. During this essay I will discuss what the disadvantages and what the advantages of forensic testing are. I will also talk about how forensic testing is carried out. Forensic testing is used to identify an individual by using the DNA sequences of that person.

Read More
1298 Words | 6 Pages

Numerous organisms have homologous or similar structures many scientists consider to be proof of a common ancestor. Be that as it may, Michael Denton in his book, Evolution: A Theory In Crisis, states that “The evolutionary basis of homology is… severely damaged by the discovery that apparently homologous structures are specified by quite different genes in different species” (149). Basically, the genes responsible for these similar structures vastly vary in different organisms. Furthermore, the differences between the functions of different organisms and their specialized structures show that homologous shapes do not prove evolution (Richards,

Read More
1313 Words | 6 Pages

Such reconstructions, especially when done using slowly evolving protein sequences, are often quite robust and can be used to reconstruct a great deal of the evolutionary history of modern organisms . These reconstructed phylogenies recapitulate the relationships established through morphological and biochemical studies. The most detailed reconstructions have been performed on the basis of the mitochondrial genomes shared by all eukaryotic organisms, which are short and easy to sequence; the broadest reconstructions have been performed either using the sequences of a few very ancient proteins or by using ribosomal RNA sequence . Phylogenetic relationships also extend to a wide variety of nonfunctional sequence elements, including repeats, transposons, pseudogenes, and mutations in protein-coding sequences that do not result in changes in amino-acid sequence.

Read More
957 Words | 4 Pages

Biodiversity is all life on the planet. How much life is out there, however, is still quite unclear and by this time, possibly many new species may find out. Appraise of around a range from 2 million to 100 million species, with only about 1.4 million are named at this current time. The attainable diversity of uncharacterized species is very much frustrating, visualizes how many species are here and others are still missing or unrecognized. However, now days where globalization intercepts species have begun to dissolve at a very alarming and devastating rate.

Read More
814 Words | 4 Pages

DNA is a complex molecule containing the genetic information that makes up the chromosome. Genomes are the complete instructions for making an organism, consisting of all the genetic material in that organism’s

Read More
1251 Words | 6 Pages

DNA in forensic science The majority of cells making up the human body are diploid cells carrying identical DNA, with the exception of haploid gametes and red blood cells. Several types of biological evidence such as blood and hair are commonly used in forensic science, which is the scientific study of evidence for crime scene investigations and other legal matters. Forensic science is used for the purpose of DNA analysis, this is the analysis of DNA samples to determine if it came from a particular individual. DNA analysis is done by obtaining DNA samples from an individual; next, a large sample of DNA is produced from amplified selected sequences from the DNA collected.

Read More

More about The Importance Of DNA Barcoding

Related Topics

Open Document