Wednesday, May 6, 2020

Compare and Contrast Dna and Rna - 951 Words

Compare and contrast DNA and RNA. Discuss why humans did not evolve with one central repository of DNA, but rather it is replicated throughout the body? Deoxyribonucleic acid (DNA): It is helical double stranded nucleic acid made of complementary purine and pyramidines supported by deoxy ribose sugars and phospodiester structures. (5 Prime to 3 prime). Eukaryotic DNA material. Ribonucleic acid (RNA): It is a single nucleic acid supported by adenine, guanine, cytosine and uracil supported by ribose sugars. mRNA, rRNA and tRNA. Double standed RNA Viruses are also with RNA as genetic material a) Makes a complementary strand of RNA ---------gt; primase Primase is an RNA polymerase that reads DNA and synthesize complememntary RNA strand†¦show more content†¦The four bases found in DNA are adenine (abbreviated A), cytosine (C), guanine (G) and thymine (T). A fifth pyrimidine base, called uracil (U), usually takes the place of thymine in RNA and differs from thymine by lacking a methyl group on its ring. If we only had one central repository of DNA, it would take a long time for a protein to be made. Wed have to make it far in advance of needing it, so we wouldnt be able to quickly respond to new situations. Imagine if you were out hunting, and suddenly, a wolf appeared at your side. If you were slow at making proteins because you had one central repository of DNA, the wolf would probably get to you before you could respond safely. Also, regulation of proteins occurs at the level of DNA as well as on other levels. In some cells, certain sections of DNA are bundled tight in a mass of proteins, in such a way that no RNA (and thus no protein) can be made from them. This turns off those genes. In other sections, only a few proteins might be keeping the DNA turned off, so that it could quickly be unravelled and used to make proteins. This decreases the chance of harmful mutations killing the entire body, as well. Right now, you have redundancy--many copies of heart cells, each with a full set of DNA. Now imagine that something goes wrong with one of those cells. It can safely suicide, and the other cells will replace it. If we had one central set of DNA, if anything ever went wrongShow MoreRelatedCh. 12 13 Dna Protein Synthesis Project. By Anthony1236 Words   |  5 PagesCh. 12 13 DNA Protein Synthesis Project By Anthony Li, Connor Farrell, John Koutsonikolis, and Tristan Funicelli (Tristan) # Describe the contributions of each of the following to the discovery of the structure of DNA - 1) Watson and Crick: Used Rosalind Franklin’s x-rays of DNA to conclude that DNA took the shape of a double helix. 2) Frederick Miescher: Used pus from infections to isolate nuclein. He found that nuclein had a unique ratio of phosphorous to nitrogen. 3) Oswald Avery: TestedRead MoreThe Theories Of Virus Origin1615 Words   |  7 Pagespieces of DNA or RNA progressively picked up additions, forming infectious agents. The existence and behavior of retrotransposons is the main evidence and support for this theory. Retrotransposons are genes that use RNA intermediates to move along the genome. For now retrotransposons are confined to the boundaries of the cell and assist with evolution. The theory compares retrotransposons with the retroviruses, which is the family of the HIV virus. To understand the theory we must compare the two.Read MoreComparing Prokaryotic And Eukaryotic Cells891 Words   |  4 Pages1. Compare and contrast prokaryotic and eukaryotic cells. Be sure to address cell structure, replication (including DNA replication) and gene expression. 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Explain how these alleles are transmitted by the process of mitosis to daughter cells. After mitosis the parent cells genome is dividedninto two daughter cells. In most eukaryotes, the nuclear envelope that separates the DNA from the cytoplasm disassembles. The chromosomes align themselves in a line spanning the cell. As the cell elongates, corresponding sister chromosomes are pulled toward opposite ends. A new nuclear envelope forms around the separated sister chromosomesRead MoreBiology Lab Analysis1034 Words   |  5 PagesSMYD2 inhibitors. Experimental methods: Molecular analyses and RNA sequencing: We will constructed a total of four libraries for CML and MLL cell lines to reveal an overexpression of gene categories that involved in CML and MLL using RNA sequencing. We will compare between leukemia cells that have treated with one of SMYD2 inhibitor with untreated leukemia cell as a reference. 1. RNA Isolation: First we will extract the total RNA from CML and MLL cell lines using 10 mLTrizol reagent (Invitrogen)Read MoreGold Naotechnology Essay1473 Words   |  6 PagesÃŽ ²-chronic lymphocytic leukemia cells as compared to AuNP without antibody conjugates (Pissuwan et al 2011). Thermal therapy with near-infrared (NIR) laser and AuNP has proven effective in breast cancer cell lines in vitro (Stuchinskaya et al 2011). Compare with existing materials there is a high percentage to achieve the positive results. The research will focus on the breast cancer treatment. In such a way, the literature review will evaluate the way in which AuNPs provide drug delivery for the breast

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