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THE BACKBONE OF DNA IS FORMED OF NUCLEOTIDES LINKED BY PHOSPHODIESTER BOND.
A nucleotide consists of following three compounds
1. Pentose sugar :- It is a 5 membered ring sugar. Out of these 5 members four are carbon and one is oxygen. The pntose sugar in case of DNA is deoxyribose.
2. Nitrogen Base :- It is a nitrogen containg basic ring compound. They are broadly classified into 2 categories-Pyrines and pyrimidines. These are further divided into 5 nitrogen bases. They are Adenine,Guanine,Cytocine, Thymine, Uracil. Out of these 5 bases only four are present in DNA and only one occurs in it at a time.DNA does not have Uracil. The 7th or 9th nitrogen of the nitrogen base are linked to the 1st carbon of pentose sugar by glycosidic bond
3. Phosphate group :-It is a derivative of phosphoric acid and is attached to 5th carbon of pentose sugar by ester bond formed by dehydration synthesis
Two nucleotides in DNA are liked by phospho diester bond formed between -OH of phosphate group of one nucleotide and 3rd carbon of pentose sugar ofadjacent nucleotide.
The sugar phosphate backbone of DNA refers to the alternating sugar (deoxyribose) and phosphate groups that form the outer structural framework of the DNA double helix. The phosphate groups link the sugar molecules together through phosphodiester bonds, forming a strong and stable structure that supports the nitrogenous bases in the DNA molecule.
The sugar-phosphate backbone, as its name implies, is the major structural component of the DNA molecule. The backbone is constructed from alternating ribose sugar and phosphate molecules which are highly polar. Because the backbone is polar, it is hydrophillic which means that it likes to be immersed in water. The other major portion of DNA is the internal bases. http://www.everythingbio.com/glos/definition.php?word=sugar-phosphate+backbone
The sugar phosphate backbone is an important stuctural component of DNA. It consists of 5-carbon deoxyribose sugars and phosphate groups. These sugars are linked together by a phosphodiester bond, between carbon 4 of their chain, and a CH2 group that is attached to a phosphate ion.
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Does nucleic acid have sugar phosphate backbone?
Yes, nucleic acids have a sugar-phosphate backbone. The backbone is formed by a repeating pattern of sugar molecules (deoxyribose in DNA, ribose in RNA) connected to phosphate groups. The nitrogenous bases are attached to this backbone to form the overall structure of DNA and RNA.
How is the sugar phosphate backbone held together?
The sugar-phosphate backbone in DNA is held together by covalent bonds called phosphodiester bonds. These bonds link the 5' phosphate group of one nucleotide to the 3' hydroxyl group of the next nucleotide, forming a strong sugar-phosphate backbone that gives DNA its structural stability.
In DNA what do phosphate groups bond to?
Phosphate groups in DNA bond to sugar molecules through a phosphodiester bond to form the backbone of the DNA strand.
Does RNA contain a phosphate group like DNA?
Yes, RNA contains a phosphate group in its backbone, just like DNA. The phosphate group is important for forming the sugar-phosphate backbone that gives RNA its structure and stability.
Why are genes distinguished by bases but not by the sugar-phosphate backbone?
Genes are distinguished by the sequence of bases, not the sugar-phosphate backbone, because the sequence of bases determines the genetic information encoded in the DNA. The sugar-phosphate backbone forms the structural framework of the DNA molecule, helping to stabilize and protect the genetic information stored in the bases.
What is the sequence of subunits in the DNA backbone?
The DNA backbone consists of alternating sugar (deoxyribose) and phosphate groups. The sugar-phosphate backbone is formed by the covalent bonds between the sugar of one nucleotide and the phosphate group of the next nucleotide. This forms a repeating pattern of sugar-phosphate-sugar-phosphate along the DNA strand.
What makes up the outside of the dna ladder?
The outside of the DNA ladder is made up of a sugar-phosphate backbone. The sugar in DNA is deoxyribose, which alternates with phosphate groups to form the backbone. The nitrogenous bases are attached to this sugar-phosphate backbone on the inside of the ladder.
Does DNA has a sugar nitrogen backbone?
I believe not. I think it is a sugar phosphate backbone.
What units make up The backbone of the DNA molecule?
The backbone of the DNA molecule is composed of alternating sugar (deoxyribose) and phosphate units. These sugar-phosphate units are connected by phosphodiester bonds to form the backbone of the DNA strand.
Does Deoxyribose bond to phosphate in DNA?
Yes, deoxyribose sugar molecules in DNA form covalent bonds with phosphate groups to create the sugar-phosphate backbone of the DNA molecule. This alternating sugar-phosphate backbone provides stability and support to the DNA double helix structure.
What 2 substances make up the backbone or the sides of the DNA molecule?
The backbone of DNA is made up of sugar molecules called deoxyribose and phosphate groups, which alternate along the sides of the DNA molecule.
What forms the backbone of the DNA double helix molecule?
The backbone of a DNA chain is sugar and phosphate groups of each nucleotide.
What two parts make up the back bone of DNA?
The backbone of DNA is made up of repeating units of sugar (deoxyribose) and phosphate molecules. These molecules are connected by covalent bonds to form a sugar-phosphate backbone, with the nitrogenous bases extending from it.
What is the sugar phosphate supporting structure of the DNA double helix called?
The sugar-phosphate supporting structure of the DNA double helix is called the backbone. It consists of alternating sugar and phosphate molecules that provide a stable framework for the DNA molecule.
The backbone of the DNA molecule is made of what?
The backbone of the DNA molecule is made of alternating sugar (deoxyribose) and phosphate molecules. These sugar-phosphate chains are connected by covalent bonds.
What is the backbone of DNA and RNA?
The backbone of DNA and RNA is made up of alternating sugar (deoxyribose in DNA and ribose in RNA) and phosphate molecules. This sugar-phosphate backbone provides structural support for the nitrogenous bases that make up the genetic information in DNA and RNA.
What is an example of a sugar phosphate backbone?
DNA and RNA molecules have a sugar phosphate backbone. In DNA, the sugar is deoxyribose, while in RNA it is ribose. The phosphate groups link the sugar molecules together forming a linear chain.
