Structure And Chemical Composition Of Dna Pdf


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27.01.2021 at 17:08
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structure and chemical composition of dna pdf

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Deoxyribonucleic acid, or DNA, is a molecule that contains the instructions an organism needs to develop, live and reproduce. These instructions are found inside every cell, and are passed down from parents to their children. DNA is made up of molecules called nucleotides.

DNA is the genetic material found in all living organisms, ranging from single-celled bacteria to multicellular mammals.

Chemical Structure of DNA

Nucleic acid , naturally occurring chemical compound that is capable of being broken down to yield phosphoric acid , sugars, and a mixture of organic bases purines and pyrimidines. Nucleic acids are the main information-carrying molecules of the cell , and, by directing the process of protein synthesis , they determine the inherited characteristics of every living thing. DNA is the master blueprint for life and constitutes the genetic material in all free-living organisms and most viruses. RNA is the genetic material of certain viruses, but it is also found in all living cells, where it plays an important role in certain processes such as the making of proteins. Nucleic acids are naturally occurring chemical compounds that serve as the primary information-carrying molecules in cells. They play an especially important role in directing protein synthesis. Nucleic acids were discovered in by Swiss biochemist Friedrich Miescher.

These metrics are regularly updated to reflect usage leading up to the last few days. Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts. The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric. Find more information on the Altmetric Attention Score and how the score is calculated. DNA assembly of nanoparticles is a powerful approach to control their properties and prototype new materials.

DNA: Definition, Structure & Discovery

This page has been archived and is no longer updated. In reality, this is not the case. Then, in the decades following Miescher's discovery, other scientists--notably, Phoebus Levene and Erwin Chargaff--carried out a series of research efforts that revealed additional details about the DNA molecule, including its primary chemical components and the ways in which they joined with one another. Without the scientific foundation provided by these pioneers, Watson and Crick may never have reached their groundbreaking conclusion of that the DNA molecule exists in the form of a three-dimensional double helix. Although few people realize it, was a landmark year in genetic research, because it was the year in which Swiss physiological chemist Friedrich Miescher first identified what he called "nuclein" inside the nuclei of human white blood cells.


The other two bases, cytosine and thymine, have a single-ring structure of a type called a pyrimidine. The chemical components of DNA are arranged into.


DNA structure and function

DNA Deoxyribonucleic acid is also known as the basic unit of nucleus which is present inside the cell. DNA is a molecule which makes each and every individual unique. It contains the information that how an organism needs to develop, live and reproduce. DNA is the medium by which genetic material is passed down from parents to their offspring so basically DNA is the hereditary material in almost all the organisms. Every cell in our body has the same DNA.

Discovery of DNA Structure and Function: Watson and Crick

References and Recommended Reading

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5 Comments

Frutos N.
30.01.2021 at 10:13 - Reply

Describe chemical structure of DNAs. • derive the concept that DNA is the carrier of genetic information. • general concepts of how genes are expressed.

Eloise H.
30.01.2021 at 19:54 - Reply

strongly on the chemical structure of the DNA molecule, given the complex but the structural components of DNA and RNA are very simi- lar. This chemical.

Hugues S.
01.02.2021 at 08:33 - Reply

of B DNA, the most common structure found within a cell. Variation in the nitrogen base composition distingushes each o chemical cycles are run.

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