Yes. The phosphate group links two deoxyriboses in the backbone of the DNA molecule.
Phospates.
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DNA: AGTCadenine (A), guanine (G), cytosine (C), and thymine (T)RNA: AGTU (the Thymine is replaced with Uracil)adenine (A), guanine (G), cytosine (C), and Uracil (U)
The sides of the DNA ladder are formed by alternating sugar and phosphate molecules. These sugar-phosphate backbones run parallel to each other on opposite sides of the double helix structure of the DNA molecule.
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Covalent bonds between a sugar molecule (deoxyribose) and a phosphate group make up the backbone of DNA. These are very strong covalent bonds and are broken only with great expenditure of energy--x-rays, for example.
DNA is made up of two strands that are composed of nucleotides. Each nucleotide consists of a phosphate group, a sugar molecule (deoxyribose), and a nitrogenous base (adenine, thymine, cytosine, or guanine). The two strands of DNA are held together by hydrogen bonds between complementary nitrogenous bases.
A DNA molecule is shaped like a twisted ladder ,the rungs of the 'ladder' are the bases ,they are called nucleotides.A nucleotide is made up of phosphate ,sugar and a base.The bases pair (a-t) c-g).The sides of the 'ladder' are made out of phospates and sugers. The order of the bases makes up the genetic code.The code tells the cells how to assemble the protens that make up our body.The bases are the genes.
by DNA fingerprinting method , DNA-DNA hybirdization or DNA sequencing. to know the sequence of DNA
DNA is DNA it can not be changed.
The four enzymes involved in DNA replication and repair are DNA polymerase, DNA helicase, DNA ligase, and DNA primase. DNA polymerase synthesizes new DNA strands, DNA helicase unwinds the double helix, DNA ligase joins the Okazaki fragments on the lagging strand, and DNA primase synthesizes RNA primers for DNA polymerase to begin replication.
DNA Helicase unwinds and unzips the DNA. It separates the two strands of DNA so DNA replication can occur.