Describe The Structure Of Dna

Improved Essays
A. The structure of DNA is that DNA is made up of a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction and thats is called nucleotides. Each nucleotide contains a phosphate group. phosphate is a chemical and salt of phosphoric acid. DNA is also a sugar group and a nitrogen base. There are four types of nitrogen bases which are adenine (A), thymine (T), guanine (G) and cytosine (C). This order determines DNA's instructions or genetic code. The function of DNA is Deoxyribonucleic acid, which is a organic substance present in living cells and contains the genetic instructions for the development and function of living things. The main role of DNA in the cell …show more content…
Helicases are enzymes that bind and may even remodel nucleic acid protein complexe. There are both DNA and RNA helicases. Codon is a sequence of three nucleotides that form a unit of genetic code in a DNA or RNA molecule. Polymerase is a enzyme that brings the formation of a particular polymer. A five cap is a specially altered nucleotide on the five. Poly (A) tail is a long row of 100-250 adenine nucleotides. Introns is the selection of primary transcript not in the mRNA. Exons are regions of eukaryotic genes that are part of the final mRNA. A spliceosome is a large and complex molecular machine found primarily within the splicing (a process b which introns are removed from the growing RNA stand, then pieces of primary transcript are removed and the remaining segments are joined together) speckles of the cell nucleus of eukaryotic cells. rRNA is a molecular component of a ribosome, the cells protein factory. tRNA are molecules that carry amino acids to the ribosome for polymerization (a process of reacting monomer molecules together in a chemical reaction to form polymer chains) into a polypeptide. mRNA is a subtype of RNA which carries a portion of the DNA code to other parts of the cell for processing. Ribosomes are a minute particle consisting of RNA and associated proteins and found in large numbers in the cytoplasm of living cells. Anticodon is a sequence

Related Documents

  • Decent Essays

    Unit 4 Dna Research Paper

    • 172 Words
    • 1 Pages

    Nucleotide: a nucleic acid monomer, consisting of five carbon sugar covalently bonded to nitrogenous base and phosphate group. DNA “backbone” : chain nucleotide made of sugar and phosphate group that are joined together by covalent bond and are resistant to cleavage Antiparallel: the 2 strands of DNA double helix that run in opposite directions of each other Reactive chemical group at the 5’ end of DNA: phosphate group Reactive chemical group at the 3’ end of DNA : hydroxyl group The four DNA nucleobases thymine (T), adenine (A), Cytosine (C) and guanine (G) , Complementary base pairing adenine and thymine pair (A-T) and guanine and cytosine pair (G-C) Melting temperature: temperature needed to break 50% of the hydrogen bonds Chromatin:…

    • 172 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    3.05 Dna Research Paper

    • 522 Words
    • 3 Pages

    All together it’s called a nucleotide. A nucleotides are set in two long strands creating a spiral effect called (double helix). The structure of that double helix looks like a ladder, with the base pairs making the ladder’s handles and steps, and the sugar, phosphate molecules creating the sides of the ladder. An important part of DNA is that it can replicate, (make clones of itself).…

    • 522 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    These ribosomes move through the mRNA to generate new subunits of proteins. tRNA and mRNA sequences interact through codons and anticodons and tRNA is what brings amino acids for the use of the ribosomes in translation; therefore, amono acids continue to be made as long as there is availability of resources until a stop codon is hit which is what stops the translation. Different types of amino acids are made for different things; therefore, naturally, these types of amino acids must be made through the process of translation. Through the use of a simple chart of genetic code triplets, it is possible to find out which coding sequences of mRNA correspond to which amino acids; therefore, it is easy to see the outcome of translation without actually diving into genes. Sixty four total codons exist that correspond to polypetides and…

    • 982 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    1. DNA Structure and Function DNA is the type of organic compound that stores the genetic information in a living organism. DNA is made up of two strands of nucleotides, which include a phosphate group, five carbon sugar, and a nitrogenous base. Each individual strand in held together by strong covalent bonds (a bond 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.…

    • 1255 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    A nucleotide is made up of three things. It consists of a nitrogenous base made up of either adenine, cytosine, guanine or thymine. The nucleotide also contains either the sugar deoxyribose or ribose. Finally, it contains one or more phosphate groups. Nucleotides bond together and form a double helix, which was discovered by scientists Francis Crick and James Watson in 1956.…

    • 1045 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    The role of nucleic acids are to store, express, and transmit genetic information. A nucleotide is an organic molecule having three components: one or more phosphate groups, a five carbon sugar, and a single or double ring of carbon and nitrogen atoms. Two types of nucleic acids are DNA and RNA. RNA. The structure of DNA is a double helix formed by base pairs attached to a sugar-phosphate backbone.…

    • 1322 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    DNA makes proteins. DNA is stored in the nucleus and contains phosphates (a phosphate includes nitrogen bases). DNA is made up of these phosphates, but, in making polypeptides, or a protein, the nitrogen bases are the most important in his process. To make a polypeptide, the helicase unzips the double helix figure, making two rows, or strands, which are one side of all of the nitrogen bases. Floating nitrogen bases string the opposite of these sides, to make an original copy, but leave, ending in one strand of the opposite, original DNA strand.…

    • 400 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Construction of DNA, RNA, And Protein By Building Models Introduction Nucleic acids are made of nucleotides. When these nucleic acids form sequences they create either DNA or RNA. DNA and RNA are composed of a phosphate, a sugar, and a nitrogen base. The main difference in RNA and DNA is that uracil replaces the base of thymine in RNA. Proteins are essential to maintaining cells by creating hormones and enzymes, and defending the cell.…

    • 1175 Words
    • 5 Pages
    Improved Essays
  • Superior Essays

    Joyce, Catherine M., and Thomas A. Steitz. "Function and Structure Relationships in DNA Polymerases. " Annual Review of Biochemistry 63.1 (1994): 777-822. Web. 23…

    • 1517 Words
    • 7 Pages
    Superior Essays
  • Improved Essays

    Genes are the basic physical and functional unit of heredity, and make up DNA, acting as instructions for the production of proteins in the organism of every living thing. DNA (deoxyribonucleic acid) is condensed and packaged around histones, which order it into units known as nucleosomes. The epigenome is made up of chemical compounds and proteins that can attach to DNA and switch certain genes on or off, controlling the functions and roles of different cells. Epigenetics, which involves genetic control by factors outside of the DNA sequence, can switch genes on or off and determine how proteins are copied and the roles they have in certain cells. Though DNA can be compared to the harddrive on a computer, epigenomes are more flexible and can determine how genes function,…

    • 728 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    The nucleus made up of a membrane, pores and the nucleolus. The nucleus is where the genetic information for the cell is stored and is responsible for gene expression and protein synthesis. The DNA within the nucleus is split by an enzyme called DNA helicase. The nucleotides for mRNA line up with the split DNA to make mRNA, or Messenger RNA. This produces a copy of the DNA.…

    • 1390 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    Influenza Virus Structure

    • 123 Words
    • 1 Pages

    The RNA is encased with nucleoprotein into a helical ribonucleoprotein form, with three polymerase peptides…

    • 123 Words
    • 1 Pages
    Improved Essays
  • Improved Essays

    The four nitrogen containing bases also stand for Adenine, Guanine, Thymine, and Cytosine. DNA has many different jobs that it has to do constantly to keep the body going. Certain genes in the body are controlled to be turned on or off, because sometimes we don’t need every single gene at all times. Therefore, DNA will let the genes know in those certain controls centers whether or not we need the gene, it most cases it is too make a protein. A few of the other jobs DNA has are, no function genes that have no effect on anything, and also genes that need to carry information and instructions in order to make the proteins for the body.…

    • 903 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Unit 18 - Genetics (Assignment 1) Task 1. Deoxyribonucleic acid (DNA for short) is genetic material that carry’s the majority of information for development 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.…

    • 782 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) make up the nucleic acid in cells and is responsible for the differences in many of our traits. DNA is the substance in which our genetic material is carried on from one generation to the next. Nucleotides join together through phosphodiester linkages between the 5 ' and 3 ' carbon atoms to form nucleic acids. “Nucleotides are composed of a five-membered sugar group with a purine or pyrimidine nitrogen base group attached to its 1 ' carbon via a glycosidic bond and one or more phosphate groups attached to its 5 ' carbon via an ester bond” (sparknotes.com/biology). DNA and RNA both contain genetic information, however there several variations between the two.…

    • 714 Words
    • 3 Pages
    Improved Essays

Related Topics