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Purines are double ringed molecules, but I don't think it is accurate to describe them as sugars. Sugars are molecules consisting of carbon, hydrogen, and oxygen, and usually with a ratio of around one carbon to one oxygen to two hydrogens. Purines have multiple nitrogens in their ring structures which I believe disqualifies them from being sugars.
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∙ 11y ago
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What are nuclei acids made of?
Each nucleotide consists of a sugar in the middle of a phosphate group and a nitrogenous base .There are two classes of bases. Two are purines (double-ringed structures) and two are pyrimidines (single-ringed structures).Very basically, they are made of a nitrogen base, a pentose (5 carbons) sugar and a phosphate group.
What do molecules contain?
DNA contains nitrogenous base pairs (purines and pyrimidines), along with deoxyribose sugar, nucleosides and nucleotides.
What are three major differences between the structures of DNA and RNA?
RNA and DNA differ in these ways: (1) DNA has deoxyribose sugar, and RNA has ribose sugar. (2) DNA is made up of these four bases: adenine & guanine, cytosine & thymine; RNA is made up of adenine & guanine, cytosine & URACIL, the difference being that in RNA, uracil replaces thymine. (3) DNA is a double stranded molecule, and RNA is a single stranded molecule. (And for an optional 4)RNA can travel in and out of the nucleas of the cell. The DNA is stuck in the nucleas.
What is the model of the structure of DNA called?
double helix, twisted ladder, spiral staircase.
What are the three parts that make up a DNA molecule called?
DNA molecules are actually made up of nucleotides, which is the substance that is made up of three parts. Each nucleotide has a phosphate, a ribose sugar (five-carbon sugar) and a nitrogeneous base (purines-Adenine,Thymine or pyramidines-Guanine,Cytosine). Consider the DNA molecule as a twisted ladder (double helix). The sides of the ladder are actually the phosphate and ribose sugars, and the rungs of the ladder are complimentary nitrogeneous bases of each other. For example, if one side of the rung is the base Adenine, then the complimentary base will be Thymine, vice versa. It is the same for the pyramidines.
What are the sides of the lader of the double helis made of?
The sides of the ladder of the double helix are made of groups of hydrogen bonding between the purines and pyrimidines. The backbone is made up of sugar-phosphate.
What are nuclei acids made of?
Each nucleotide consists of a sugar in the middle of a phosphate group and a nitrogenous base .There are two classes of bases. Two are purines (double-ringed structures) and two are pyrimidines (single-ringed structures).Very basically, they are made of a nitrogen base, a pentose (5 carbons) sugar and a phosphate group.
Why is sucrose called a double sugar?
It is made of two individual sugar monomers bonded together to become a disaccharide.. In other words a double sugar
What do molecules contain?
DNA contains nitrogenous base pairs (purines and pyrimidines), along with deoxyribose sugar, nucleosides and nucleotides.
What is a double sugar molecule made of two monosaccharides?
Disaccharide
What substance make up a DNA molecule?
The DNA is the longest biopolymer discovered. It is made up of two strands that are the polymers of repeating units of deoxyribonucleotides. The deoxyribonucleotides, themselves consist of three moieties: 1. Deoxyribose Sugar: A pentose (5 carbon) Sugar 2. Phosphate: Phosphate group imparts the negative charge to DNA molecule 3. Nitrogenous Bases: These are aromatic compounds that have their basic nature due the presence of Nitrogen. Two types of bases are found in the DNA molecule 1. Pyrimidine: they are single ringed compounds that are derivative of compound called Pyrimidine. There are two types of Pyrimidines in DNA, Cytosine and Thymine. 2. Purines: Purines are derivative of organic compounds called as Purines and have two rings. There are two Purines: Adenine and Guanine) in DNA. The dexoribonucleotides are linked by the reaction of Phosphodiester bond to form one strand of DNA>
Is RNA made up of nucleotides?
Yes, RNA molecules are made of nucleotides.
The long backbones of the DNA molecules are made of alternating sugar and?
The sugar-phosphate backbones are the double helix staircase railings.
What are the sides pf a double helix made of?
altering sugar parts and phospate parts
What are sides of a double helix made of?
the sides of a double helix are composed of a chain alternating between a phosphate and a deoxyribose (5 carbon) sugar.
What does DNA have in it?
DNA is a macromolecule made of many nucleotide subunits; these subunits are made of a nitrogen-containing base, a ribose sugar, and a phosphate group. DNA is also associated with many different types of proteins that help keep It maintained and organized within the cell.The bases are either single rings called pyrimidines (Thymine and Cytosine) or double-ringed purines (Adenine and Guanine). The bases (represented as T, C, A or G) are bonded to a deoxyribose sugar, this sugar is also bonded to phosphate groups. The deoxyribose sugars and the phosphate groups alternate to form the backbone of one DNA strand. Two strands are arranged into a double helix, each strand is anti-parallel to the other (they point in opposite directions like lanes in a two way street).DNA is organized and coiled within the cell by histonesand other proteins.*DNA stands for deoxyribonucleic acid
What is the difference between a double mattress and twin mattress?
A twin is made for one person and a double is made for two. A double is the same as a full...just different name. A twin is also known as a single (twin=single, full=double). I think they should have just stuck with a single and double...much easier to keep straight. A twin is for one person, really? How confusing!As a side note, 2 Twin/Single XL's (4 inches longer) are equivalent to a King.
