Dna Essay Outline

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! During cell division, the two strands of DNA split, and the two single strands can then be used as a template in order to construct a new version of the complimentary strand.

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! During cell division, the two strands of DNA split, and the two single strands can then be used as a template in order to construct a new version of the complimentary strand.

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The double helix model of DNA (deoxyribonucleic acid) consists of two intertwined strands.

These strands are made up of nucleotides, which themselves consist of three component parts: a sugar group, a phosphate group, and a base.

Firstly, it contains a different sugar group in the sugar phosphate backbone of the molecule: ribose instead of deoxyribose.

Secondly, it still uses the bases A, G and C, but instead of the base T, it uses uracil, U.

She had yet to publish her findings when Watson and Crick obtained access to them, without her knowledge.

Dna Essay Outline International Mediation Case Studies

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.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.The bases are what allows the two strands of DNA to hold together.Strong intermolecular forces called hydrogen bonds between the bases on adjacent strands are responsible for this; because of the structures of the different bases, adenine (A) always forms hydrogen bonds with thymine (T), whilst guanine (G) always forms hydrogen bonds with cytosine (C).The errors can be in the form of a changed base, or even a deleted or added base.Some chemicals, and radiation, can induce these changes, but they can also happen in the absence of these external effects.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.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.