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10. Hydrogen bonds hold together nitrogen bases in which hold together the two strands of DNA.…
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DNA is a long, double-stranded molecule made up of A, T, G, and C bases.…
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Deoxyribose Nucleic Acid (DNA) is a polynucleotide molecule that encodes the genetic instructions used in the development and functioning of all known living organisms and many viruses. Most DNA molecules are double stranded helices, consisting of two polynucleotide strands made up of simpler molecules known as nucleotides. A nucleotide is made up of an organic nitrogenous base, a deoxyribose sugar and phosphate groups. It is order of these bases which make up the genetic code; a set of rules, by which information is encoded within genetic material.…
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DNA stands for Deoxyribonucleic acid and looks like a spiral. The spiral is also known as a double helix. The strands are made up of our genetic information, composed of genes and chromosomes. There are four bases divided among purines and pyrimidines. On the purines there are Adenine (A) and Guanine (G). On the pyrimidines there are Cytosine (C) and Thymine (T). The base pairs are Adenine and Thymine (A-T) and Cytosine and Guanine (C-G). DNA is found in the nucleus of every human cell. Humans have 46 chromosomes. When a cell reproduces, the chromosomes get copied and distributed to each offspring.…
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The primary function of DNA is to code for information. DNA consists of long chains of amino acids.…
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A molecule of DNA is made up of long chains of polymers and monomers called nucleotides. Those chains, two in particular that compose a strain of DNA, are formed by the grouping of nucleotides into polynucleotides. A nitrogenous base, a sugar, and a phosphate group make up the composition of a nucleotide. In the case of DNA, the four nucleotides that are found along the chain of DNA are thymine (T), cytosine (C), adenine (A), and guanine (G). Those nucleotides are joined by their covalent bonds, more specifically the sugars and phosphates which compose the sugar-phosphate backbone of the polynucleotide.…
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The first stage in the flow of information is DNA. It stores the necessary instructions for the building of protein. DNA is can be viewed as the blueprints required to start the process. The next stage in the flow of information is the RNA.…
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DNA made up of units called nucleotides, nucleotides are made up of three molecules components, a nitrogen base, a sugar, and a phosphate (Simon, Reece, Dickey, 2010). The nucleotides are joined together by bonds between the sugar of one nucleotide and the phosphate of the next producing a long chain of nucleotides resulting in a sugar-phosphate backbone (Simon, Reece, Dickey, 2010) the base containing nitrogen is the only part that is variable represented by, A Adenine, C cytosine, G guanine, and T Thymine. The sugars and phosphates form the backbone of the molecule and are on the outside. The bases point inwards horizontally. The antipoarallel strands run in opposite directions and are held together by hydrogen bonds between the base pairs, these two long strands twisted and wrap around each other to form a double helix. Hydrogen bonds between bases hold the strands together; each base pairs with a complementary partner: A with T, and G with C (Simon, Reece, Dickey, 2010).…
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Describe the structure of DNA.DNA is thread formed by two strands, related together to form a double helix. The double helix looks like a twisted ladder. The sides of this ladder are long unites called nucleotides and are made of three parts; a nitrogenous base, a sugar, and a phosphate group. The sides of the ladder or the nucleotides from the two separate strands of the DNA are attached by an appendage made of one of four separate bases. These appendages represent the rungs of the DNA ladder and are attached to the complimentary strand of the DNA. The bases or rungs are made of either Adenine (A) OR Thymine (T) or Cytosine (C) and Guanine (G). The attachment of the strands by the bases is specific Adenine can only join with Thymine, and Cytosine can only join with Guanine. Since this base pairing is specific, if one knows the sequence of bases a long one strand of the DNA one will also know the strand of the DNA one will also know the sequence along the complimentary strand.…
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DNA is made up of two strands. At one end of each strand there is a phosphate group attached to the carbon atom number 5 of the deoxyribose (this indicates the 5' terminal) and at the other end of each strand is a hydroxyl group attached to the carbon atom number 3 of the deoxyribose (this indicates the 3' terminal). The strands run in opposite directions and so we say that they are antiparallel. One strand runs in a 5'-3' direction and the other runs in a 3'-5' direction. Adjacent nucleotides are attached together via a bond between the phosphate group of one nucleotide and the carbon atom number 3 of the deoxyribose of the other nucleotide.…
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DNA is a structure of specific molecules and a complex mixture of chemicals. DNA is a nucleic acid, which is a group of complex compounds that can be found in all living cells or viruses, and controls cell health and function. Nucleic acids are composed of polymers and monomers, which are referred to as nucleotides. There are four different types of nucleotides that make up the structure of DNA, which are abbreviated A, C, T, and G. Covalent bonds join together nucleotides through sugar and phosphate. Polynucleotides, or a polymer nucleotide, which tends to be longer than a monomer nucleotide, contains many variations of arrangements of A, C, T, and G.…
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A DNA molecule which is the abbreviation for deoxyribonucleic acid is made up of precise lengthy chains of polymers and monomers and they are called nucleotides. These two (2) chains specifically which are composed of DNA strain are then molded by the grouping of the nucleotides into the polynucleotides. The nucleotide is composed of a nitrogenous base, a phosphate and a group. In DNA there are four (4) nucleotides that can be found along the DNA chain. These four (4) nucleotides are (T) thyme, (A) adenine, (C) cytosine, and (G) guanine. These four (4) nucleotides are fused together by their covalent bonds. In other words the sugar and the phosphates which composes the sugar/phosphate support of the polynucleotide.…
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DNA is a double-stranded molecule of polynucleotide chains twined/twisted together into a double helix structure. This molecule is the one that forms the genetic material responsible for transfer hereditary genetic information from one cell to another during cell division. RNA is a single-stranded molecule that contains polynucleotide chain used for the transfer of genetic information especially in bacteria cells (Freifelder, 2002).…
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- Nucleotides are the subunits that make up DNA. Each nucleotide is made of three parts: a phosphate group, a five-carbon sugar molecule, and a nitrogen-containing base. While the sugar molecule and the phosphate group are the same for each nucleotide in a molecule of the DNA, the nitrogen base may be any one of four different kind: Adenine, Guanine, Thymine, Cytosine. The DNA shown resembles a ladder twisted like a spiral staircase. The sugar-phosphate backbones are similar to the side rails of a ladder. The paired nitrogen bases are similar to the rungs of the ladder. The nitrogen bases face each other. The double helix is held together by weak hydrogen bonds between the pairs of bases.…
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DNA is a nucleic acid, which consist of long chains (polymers) of chemical units (monomers) called nucleotide. A molecule of DNA contains two polynucleotides, each a chain of nucleotides. Each nucleotide consists of a nitrogenous base, a sugar, and a phosphate group. Each DNA strand serves as a mold, or template, to guide reproduction of the other strand. There are four different types of nucleotides found in DNA, differing only in the nitrogenous base. DNA is contained in blood, semen, skin cells, tissue, organs, muscle, brain cells, bone, teeth, hair, saliva, mucus, perspiration, fingernails, urine, feces, etc. The four nucleotides are given one letter abbreviations as shorthand for the four bases: A is for adenine, G is for guanine, C is for cytosine, and T is for thymine.…
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