Dna Essay Outline

In this case, however, the DNA’s code is copied to m RNA (messenger ribonucleic acid), a process known as ‘transcription’.RNA’s structure is very similar to that of DNA, but with a few key differences.

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They can lead to an amino acid’s code being changed to that of another, or even rendered unreadable.

A number of diseases can result from mutations during DNA replication, including cystic fibrosis, and sickle-cell anaemia, but it’s worth noting that mutations can also have positive effects.

This graphic provides an overview of its common structure across these life forms, and a brief explanation of how it allows proteins to be generated.

DNA is found in the nucleus of cells in multicellular organisms, and was first isolated in 1869, by the Swiss physician Friedrich Miescher.

This work, however, was heavily reliant on the work of another scientist, Rosalind Franklin.

Franklin herself was also investigating the structure of DNA, and it was her X-ray photograph, clearly showing the double helix structure of DNA, that greatly aided their work.The sugar and phosphate groups combined form the repeating ‘backbone’ of the DNA strands.There are four different bases that can potentially be attached to the sugar group: adenine, thymine, guanine and cytosine, given the designations A, T, G and C.As the purpose of this post was primarily to examine the chemical structure of DNA, the discussion of replication and protein synthesis has been kept brief and relatively simplistic.If you’re interested in reading more into the subject, check out the links provided below! She had yet to publish her findings when Watson and Crick obtained access to them, without her knowledge.However, her failure to win a Nobel prize is not an oversight, but merely a consequence of the committee’s policy that Nobel prizes cannot be awarded posthumously.Today’s post crosses over into the realm of biochemistry, with a look at the chemical structure of DNA, and its role in creating proteins in our cells.Of course, it’s not just in humans that DNA is found – it’s present in the cells of every multicellular life form on Earth.Here, complicated molecules called ribosomes ‘read’ the sequence of bases on the m RNA molecule.Individual amino acids, which combined make up proteins, are coded for by three letter sections of the m RNA strand.


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