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  • Dna In Biology

    except for the difference in nitrogenous base that each one contains. These bases include adenine, thymine, guanine, cytosine. When nucleotides join together they form a shape that looks like a twisted ladder (also know as a double helix). The bases of a nucleotide also determines what other bases it is paired with on the double helix. Adenine and thymine usually bond and cytosine and guanine are usually bonded together. The nucleotides that make up these pairs are called complementary bases.…

    Words: 714 - Pages: 3
  • Nucleotide Essay

    MSA University, faculty of pharmacy, Bio chemistry department. Course code PB301 Nucleotides Student name: ID: Under supervision of DR: Teaching assistant Structure Nucleic acids are polymers consist of units called nucleotides. These mononucleotide units react together by intermolecular dehydration reactions that create phosphate ester bonds. Those reactions are either, catalyzed or specialized enzymes. The nucleotide units are created by smaller types of components. Each nucleotide…

    Words: 1340 - Pages: 6
  • Unit 18 Genetics: Questions And Answers

    growth and many other functions. DNA is located in the nucleus of a cell. DNA has a double helix structure and is formed by a series of bases these are Adenine , Cytosine , Guanine and Thymine. These bases have a basic pattern when forming DNA. Adenine will only join to Thymine when in DNA and Cytosine will only join to Guanine when in DNA. These bases are bonded by hydrogen bonds. Each base has a start an end in each sequence of the DNA structure. The strands of DNA are only separated in DNA…

    Words: 782 - Pages: 4
  • Amino Acids Are Building Blocks Of Three Structural Components

    Amino acids Amino acids are building block s of proteins. Each amino acid contains main three structural components. 1) Amino group 2) Carboxcilic group 3) R group Figure 1 2016 R can be hydrogen or any other functional group .in world there are around 182-200 found to be present in nature but we can find 20 aminoacids in…

    Words: 1094 - Pages: 5
  • The Heterotrimeric G-Proteins

    subunit (Gα); beta subunit (Gβ) and gamma subunit (Gγ). The Gβ and Gγ tend to stick together essentially forming a single sub unit in signalling pathways. Hence they are often referred to as the Gβγ subunit complex. The Gα of the G-Proteins binds to guanine nucleotides: in its active state the G-Protein is bound to…

    Words: 813 - Pages: 4
  • The Double Helix: James Watson And Francis Crick

    earlier genetic study. Early genetic research included that of Biochemist Erwin Chargaff, who had composed Chargaff’s rules. His rules stated that among DNA’s four bases adenine (A) and thymine (T) always appeared in ratios of one-to-one as did guanine (G) and cytosine (C). Two other researchers, Maurice Wilkins and Rosalind Franklin, had gotten X-ray images of DNA that suggested a helical, spiral shape (“The Francis Crick Papers,” 2013). To create their models, Watson and Crick adopted the…

    Words: 877 - Pages: 4
  • Epigenetic Synthesis

    Epigenetics is the modification of the genome to regulate gene expression. This process is achieved through a variety of different mechanisms including but not limited to, chromatin condensation, acetylation modification, and methylation modification. Gene expression can also be altered through a number of non-epigenetic mechanisms, such as environmental factors, like temperature, and the introduction of endocrine disrupting chemicals (EDC) into the environment. The level of chromatin…

    Words: 320 - Pages: 2
  • Proteins: Large, Complex Macromolecules In Organisms

    Proteins Proteins are large, complex macromolecules that play many important roles in organisms. They are required for the regulation, structure, and function of the body’s organs and tissues. Some may act as antibodies, chemical messengers, enzymes, structural components, and transport devices within the cell. Proteins are made up of hundreds or thousands of smaller subunits known as amino acids. Amino acids are made up of a single carbon atom attached to a carboxyl group, an amino group, and a…

    Words: 1470 - Pages: 6
  • Gout Research Paper

    synthesized by synthase and is now PRPP (or phosphoribosyl pyrophosphate). The PRPP is then, converted to the nucleotide IMP (or inosine monophosphate). The nucleotide IMP can then, be converted to both purines AMP (or adenosine monophosphate) and GMP (guanine monophosphate). Both purines AMP and GMP are further broken down by xanthine oxidase to make uric acid. However, individuals with hyperuricemia resulting in gout have an overproduction of purines. Therefore, if the purines are continuing…

    Words: 1447 - Pages: 6
  • Dna Structure And Function Essay

    formed as a result of the distribution of electrons between atoms). The two strands are then joined to each other by hydrogen bonds between complementary bases. There are four nitrogenous bases: adenine, thymine, cytosine, and guanine. Adenine is complementary to thymine while guanine is complementary to cytosine. Role of Hydrogen bonds Hydrogen bonds are produced when a negatively charged atom such as oxygen and a hydrogen atom unite. The hydrogen bonds between the nitrogenous bases in DNA…

    Words: 1255 - Pages: 6
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