Explain the dna hybridisation, Biology

Assignment Help:

Explain the DNA Hybridisation?

This technique is used to study or compare the genetic affinity between two organism. In such studies the deoxyribonucleic acid (DNA) of both organisms is extracted. Then the DNA strand of  both of them are separated, After this the single strand of each organism is made to come in contact with each other in vitro, in order to unite or hybridise them.

The extent to which this union occurs i.e. the degree of hybridisation is an indicator of the closeness or distantness of the two organisms. Table  shows the use of this technique in estimating the genetic similarities among some vertebrates.

Table: Genetic similarities among some vertebrates ns estimated by DNA- Hybridisation technique

618_DNA Hybridisation.png

DNA matching or hybridisation technique holds great promise in solving taxonomic problems. However, incomplete fossil records in many animals may make it difficult to solve all evolutionary or phylogenetic relationships by this method.


Related Discussions:- Explain the dna hybridisation

Role of nucleic acids in metabolism, ROL E OF NUCLEIC ACIDS - These...

ROL E OF NUCLEIC ACIDS - These are DNA / RNA. Unit is nucleotides. Present in viruses and all cells. DNA is concerned as genetic material. RNA as genetic material

Differenciate b/w gymnosperms -pteridophytes- bryophytes, How different are...

How different are gymnosperms from pteridophytes and bryophytes? Gymnosperms are not cryptogamic as pteridophytes and bryophytes are. They are phanerogamic and so they form see

What are the main complications of diabetes mellitus, Why do diabetic patie...

Why do diabetic patients often undergo dietary sugar restriction? What are the main complications of diabetes mellitus? Diabetic patients are often advised to ingest fewer carb

Explain about the secondary protein derivatives, Explain about the Secondar...

Explain about the Secondary Protein Derivatives? These are the products of further hydrolytic cleavage of the protein molecule, Examples include: a) Proteoses: Soluble in wa

Biosynthesis of hemes and chlorophylls, In animals, some of bacteria and fu...

In animals, some of bacteria and fungi, and the first step in tetrapyrrole synthesis is the condensation of the amino acid glycine with succinyl  CoA (an intermediate  of the citri

What is the function of the umbilical cord, What is the function of the umb...

What is the function of the umbilical cord? The umbilical cord haves blood vessels which convey blood among the fetus and the placenta.

Define classification of lipids, Define Classification of Lipids? Chemi...

Define Classification of Lipids? Chemically, lipids are the organic molecules poor in oxygen content, soluble in organic solvents but insoluble in water. They are classified as

Abolition of arrhythmias by exercise, Q. Abolition of Arrhythmias by Exerci...

Q. Abolition of Arrhythmias by Exercise? The induction of arrhythmias by exercise is well recognized, but the abolition of ectopic activity is less commonly appreciated. The me

Importance of care in children, Importance of care in children Childre...

Importance of care in children Children  are not  just  small adults. This is important  to keep  in mind when evaluating how children react to illness, perceive an illness, o

What is Ailing Implant, What is Ailing Implant Ailing Implant : An impl...

What is Ailing Implant Ailing Implant : An implant which may indicate an increased risk for failure, which can be of temporary significance or amenable to treatment and is gene

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