which statement describes the structure of dna
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What are the main features of DNA? DNA is double helical in structure. each spiral strand, composed of a sugar phosphate backbone and attached bases, is connected to a complementary strand by hydrogen bonding (… non-covalent) between paired bases, adenine (A) with thymine (T) and guanine (G) with cytosine (C).
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What is RNA and DNA Structure and Function? DNA Structure. DNA is a double helix structure, which is made up of a backbone of alternating phosphate and deoxyribose sugars. It also consists of 4 nitrogen bases Adenine, Guanine, Thymine and Cytosine. These nitrogen bases on each strand form hydrogen bonds with complementary bases on the other sides.n order to learn how does DNA replicate, it is necessary to know the basic structure of DNA in order to understand the DNA replication steps. DNA replication is a very crucial process and involves a lot of complex reactions catalyzed by specialized replication enzymes. DNA Replication. Replication Fork.
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Structure of Nucleic Acids The nitrogen bases form the double-strand of DNA through weak hydrogen bonds. The nitrogen bases, however, have specific shapes and hydrogen bond properties so that guanine and cytosine only bond with each other, while adenine and thymine also bond exclusively.
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Explain the components of DNA and explain its functional relationship to RNA and protein? DNA or Deoxyhydro-Neucleic Acid is composed of base pairs, nitrogen and phosphates. The nitrogen and phosphates form the backbone of the DNA structure and take the shape of a double helix with the base pairs on the inside and the backbone on the outside.here are four base pairs, adenine, guanine, cytosine, and thymine (represented by the letters A, T, C, and G) A bonds with T, C bonds with G via hydrogen bonding. A cannot bond to either C or G. This is a major function of the structure of DNA in protecting the information it contains.
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Understanding the Double Helix Structure of DNA Double Helix. Definition: In biology, double helix is a term used to describe the structure of DNA. A DNA double helix consists of two spiral chains of deoxyribonucleic acid. The shape is similar to that of spiral staircase. DNA is a nucleic acid composed of nitrogenous bases (adenine, cytosine, guanine and thymine), a five-carbon sugar (deoxyribose), and phosphate molecules.
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- Confidence votes 18. the structure of DNA allows DNA to contain information.The order of the bases on one side of DNA is a code that carries information. the structure of DNA allows DNA to contain information.The order of the bases on one side of DNA is a code that carries information.
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- Dna is a double helix structure. each molecule is made up of a phosphate molecule, a hexose sugar, and a nucleotide(adenine, guanine, thymine,cytosine). it contains the genetic material of the organism.
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The Structure of DNA A nucleotide is made up of one sugar molecule, one phosphate  molecule and one of the four bases (adenine, guanine, thymine,  cytosine). Here is the structural formula for t … he four nucleotides  of DNA.
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DNA: Definition, Structure & Discovery DNA structure. DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C).The order of these bases is what determines DNA's instructions, or genetic code.ach nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
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DNA: Definition, Structure & Discovery DNA molecules are long — so long, in fact, that they can't fit into cells without the right packaging. To fit inside cells, DNA is coiled tightly to form structures we call chromosomes. Each chromosome contains a single DNA molecule. Humans have 23 pairs of chromosomes, which are found inside the cell's nucleus.he order of these bases is what determines DNA's instructions, or genetic code. Similar to the way the order of letters in the alphabet can be used to form a word, the order of nitrogen bases in a DNA sequence forms genes, which in the language of the cell, tells cells how to make proteins.
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- A closer look at the chemical structure of DNA includes the four nitrogenous bases Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). DNA also includes sugars and phosphate groups that make the phosphate-deoxyribose backbone. If you think of the structure of DNA as a twisted ladder, the rungs of the ladder are made from the nitrogenous bases. These bases pair up to make each step of the ladder.
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What is the structure of DNA? DNA's structure is a double helix made up of two complimentary nucleic acid backbones twinned together. Depending on what you mean by structure, DNA helices also bend and twin … e with each other in the formation of chromosomes.
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Understanding the Double Helix Structure of DNA Double Helix. Definition: In biology, double helix is a term used to describe the structure of DNA. A DNA double helix consists of two spiral chains of deoxyribonucleic acid. The shape is similar to that of spiral staircase.DNA is a nucleic acid composed of nitrogenous bases (adenine, cytosine, guanine and thymine), a five-carbon sugar (deoxyribose), and phosphate molecules.efinition: In biology, double helix is a term used to describe the structure of DNA. A DNA double helix consists of two spiral chains of deoxyribonucleic acid. The shape is similar to that of spiral staircase.
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DNA: Definition, Structure & Discovery DNA structure. DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C).The order of these bases is what determines DNA's instructions, or genetic code.Similar to the way the order of letters in the alphabet can be used to form a word, the order of nitrogen bases in a DNA sequence forms genes, which in the language of the cell, tells cells how to make proteins.ach nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
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- Structure of DNA. DNA (deoxyribonucleic acid) is the cell’s genetic material, contained in chromosomes within the cell nucleus and mitochondria. Except for certain cells (for example, sperm and egg cells and red blood cells), the cell nucleus contains 23 pairs of chromosomes. A chromosome contains many genes.
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- The shape of DNA is normally described as a double-helix, which is two strands twirled loosely around each other. The DNA molecule is shaped like an extremely long ladder twisted into a helix, similar in appearance to the shape of a spiral stairway.
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- dna structure an overview the dna structure consists of two chainlike molecules polynucleotides that twist around each other to form the classic double helix the cell s machinery forms polynucleotide chains by linking together four nucleotidesthat form the strands of the dna structure are complex molecules which consist of both a phosphate moiety and a nucleobase adenine guanine cytosine or thymine joined to a five carbon sugar deoxyribose in rna the five carbon sugar ribose replaces deoxyriboseucleotides that form the strands of the dna structure are complex molecules which consist of both a phosphate moiety and a nucleobase adenine guanine cytosine or thymine joined to a five carbon sugar deoxyribose
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Chapter 12: DNA Structure and Replication 1. A series of elegant experiments revealed DNA, and not proteins, to be the genetic material, and deciphered its structure. 2. The DNA molecule is a double helix with sugar-phosphate rails and pyrimidine-purine pairs as rungs. The base sequence specifies the amino acid sequence of a particular protein.
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DNA Structure Watson and Crick described the structure of a DNA molecule as a double helix, in which two strands of nucleotide sequences were wound around each other.atson and Crick described the structure of a DNA molecule as a double helix, in which two strands of nucleotide sequences were wound around each other.
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Blood in Stool: What Does it Mean? Forms of additional evaluation include: 1  Fecal Occult Blood Test – This is a lab test to check for blood in the stool. 2  Digital Rectal Examination (DRE) – If you experience rectal bleeding, your physician may perform a digital rectal examination to find the source of the bleeding.
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The Structure of DNA A nucleotide is made up of one sugar molecule, one phosphate  molecule and one of the four bases (adenine, guanine, thymine,  cytosine). Here is the structural formula for t … he four nucleotides  of DNA. nucleotide is made up of one sugar molecule, one phosphate  molecule and one of the four bases (adenine, guanine, thymine,  cytosine). Here is the structural formula for t … he four nucleotides  of DNA.
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DNA Structural proteins that bind DNA are well-understood examples of non-specific DNA-protein interactions. Within chromosomes, DNA is held in complexes with structural proteins. These proteins organize the DNA into a compact structure called chromatin.eoxyribonucleic acid (/diˌɒksiˌraɪbɵ.njuːˌkleɪ.ɨk ˈaesɪd/ ; ˈæSɪD) dna is a molecule that carries most of the genetic instructions used in the, development functioning and reproduction of all known living organisms and many. viruses
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Understanding the Double Helix Structure of DNA 1 In biology, double helix is a term used to describe the structure of DNA. A DNA double helix consists of two spiral chains of deoxyribonucleic acid. The shape is similar to that of spiral staircase. DNA is a nucleic acid composed of nitrogenous bases (adenine, cytosine, guanine and thymine), a five-carbon sugar (deoxyribose), and phosphate molecules.
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The Rules of Protein Structure The Rules of Protein Structure. 1  The function of a protein is determined by its shape. 2  The shape of a protein is determined by its primary structure (sequence of amino acids). 3  The sequence of amino acids in a protein is determined by the sequence of nucleotides in the gene (DNA) encoding it.
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- c) Prions converting viroids into abberant proteins that kill the cell d) All of these e) None of these Answer: c 22) Which of the following is true regarding the structure of DNA? a) Double stranded molecule b) Single stranded molecule c) Composed of nucleotides d) Double stranded molecule and Composed of nucleotides e) Single stranded molecule and ...
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The Structure of DNA A nucleotide is made up of one sugar molecule, one phosphate molecule and one of the four bases. Here is the structural formula for the four nucleotides of DNA. Note that the purine bases (adenine and guanine) have a double ring structure while the pyrimidine bases (thymine and cytosine) have only a single ring.