RNA interference

    Page 9 of 15 - About 147 Essays
  • Epigenetics

    determination and cell differentiation (Jablonka & Raz, 2009). Narrowly defined, epigenetics refers to the scientific approach concerned with changes in the cell’s transcriptional potential through DNA-methylation, chromatin modulation and non-coding RNAs related gene silencing. Epigenetics could give us clues to solve some long-standing mysteries that go beyond boundaries of genetics, such as cellular identity,…

    Words: 1580 - Pages: 7
  • Genomes And Prokaryotic Analysis

    in existence since the -, “so-called big bang theory”. Genomes are the key to life because they are an organism’s complete set of deoxyribonucleic acid (DNA). DNA is the source in which processes transcription takes place to form a ribonucleic acid (RNA) and is then translated into an amino acid, which is the essential building block of protein to life. For example, hemoglobin, the cells in our bone marrow, churn out a hundred trillion per second of hemoglobin, which is a red protein responsible…

    Words: 763 - Pages: 4
  • Gene Editing Ethics

    Recently, scientists in the UK have been given the green light to start research on editing the DNA of a human embryo. The ability to unzip defective genes and replace them with nondefective copies of genes has sparked a huge debate on the ethics of human gene editing. In this paper, I will briefly explore the procedure of gene modification using the editing tool CRISPIR/Cas 9, the exciting possibilities of successfully using this method, and debate several ethical concerns that have arisen due…

    Words: 1350 - Pages: 6
  • Crick's Theory Of Dna

    John Watson and together they solved the structure of DNA using available X-ray data at the time and model building. After discovering the double helix model, Crick and fellow scientists were members of the informal "RNA tie club," which was created in order "to solve the riddle of RNA structure, and to understand the way it builds proteins." The club’s primary subject was on the "Central Dogma" which stated that DNA was…

    Words: 1407 - Pages: 6
  • The Violinist Thumb Summary

    The Violinist Thumb is a book by Sam Kean that describes how DNA, and heredity function. The book is divided into four parts. Part one describes the basics of heredity. It goes into detail about base pairs, amino acids, RNA, and the such to give readers an overview of the system of heredity. One of my favorite stories from part one is the story of Tsutomu Yamaguchi, who survived both atomic explosions in Japan during World War II, and lived into his nineties. Part two discusses adaptations,…

    Words: 907 - Pages: 4
  • Protein Analysis Lab Report Protein

    and also its function. The expression must be controlled by some kind of regulation in the processes of transcription and translation. For example, in transcription, enhancer sequences provide binding sites for regulatory proteins that will affect RNA polymerase activity. On a related note, the size of proteins can be analyzed using SDS-PAGE (sodium dodecyl sulfate Polyacrylamide Gel). This technique is useful since it denatures and coats each protein being tested with the same charge, using β-…

    Words: 863 - Pages: 4
  • Nucleoside's Susceptibility To Depurination

    It is also conceivable that, at lower pH, depurination can occur via protonation of the purine nucleobase at both N1 and N7. The presence of the 2′-OH has a significant effect on the nucleoside’s susceptibility to depurination. For example, guanosine and adenosine are more resistant to depurination compared to deoxyadenosine and deoxyguanosine. Deoxyadenosine itself depurinates 1200 times faster than adenosine (York, 1981). Interestingly, N-acyl-protected purine nucleosides (particularly…

    Words: 1764 - Pages: 8
  • Difference Between Bacteria And Eukaryotes

    Final Exam Bacteria’s gene is only coding (makes a protein) meaning one gene equals one protein. Bacteria’s life history is a short lifespan, reproduces quickly in large number of individuals. Griffith finds that bacterial cells can be transformed. (Raven) There are two forms of bacteria, one that causes pneumonia and a nonvirulent that does not. The nonvirulent lacks enzymes to manufacture the coat of polysaccharide. Griffith performed a series of experiments with these types of bacteria on…

    Words: 792 - Pages: 4
  • CRISPR-Cas9 Protein Structure

    Alongside CRISPR-Cas9 in site specific genome editing are ZFNs and TALENs. ZFNs are a DNA-binding motif assembled as ββα that utilizes a roughly thirty amino acid protein with DNA recognizing amino acids at the alpha helix (Gaj, Gersbach, & Barbas, 2013). These groups of amino acids usually recognize DNA in segments of three. This does not present much specificity in a genome. Therefore multiple DNA-binding motifs need to be combined to create specificity and result in highly specific…

    Words: 2049 - Pages: 9
  • Nucleotide

    Introduction Nucleotide is a building block for deoxyribose nucleic acids which is called DNA that has four base units,adenin(A) ,thymine(T) ,guanine(G), cytosine(C). The nucleotides can bond with their base pairs(A=T,G=C) to form a linear strand that is supported by sugar-phosphate backbone. In the linear strand, some of three base sequence is a codon and each codon is related to an amino acid. These codons come together in a linear sequence and create a gene. Gene can be called as cipher that…

    Words: 1743 - Pages: 7
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