A nucleotide is made of 3 parts: Sugar, Phosphate group and Base
RNA and DNA have different sugars and different bases.
1. Sugar
DNA - Deoxyribonucleic acid has the sugar deoxyribose
RNA - Ribonucleic acid has the sugar ribose
In RNA, the sugar has an extra oxygen. In DNA, the oxygen is not there.
2. Bases
DNA has Adenine, Thymine, Guanine, and Cytosine. A pairs with T and C pairs with G.
In RNA, Uracil replaces Thymine. So A pairs with U and C still pairs with G.
more here:
http://en.wikipedia.org/wiki/Rna#Comparison_with_DNA
DNA nucleotides: http://en.wikipedia.org/wiki/Image:DNA_chemical_structure.svg
RNA nucleotide: http://en.wikipedia.org/wiki/Image:RNA_chemical_structure.GIF
RNA contains the base uracil while DNA does not.
There are four bases found in DNA strands: adenine, cytosine, guanine, and thymine. The corresponding nucleotides are deoxyadenosinetriphosphate (dATP), deoxycytosinetriphosphate (dCTP), deoxyguanosinetriphosphate (dGTP), and deoxythymidinetriphosphate (dTTP). The di- and mono-phosphate forms are also nucleotides.
In RNA, the thymine base is replaced by uracil, thus RNA contains the bases adenine, cytosine, guanine, and uracil. The corresponding nucleotides are adenosinetriphosphate (ATP), cytosinetriphosphate (CTP), guanosinetriphosphate (GTP), and uridinetriphosphate (UTP). The di- and mono-phosphate forms are also nucleotides.
Note: These are not to be confused with trinucleotides. A trinucleotide is a series of 3 nucleotides in a row, which composes a codon.
The individual nucleotide is no different, except RNA utilizes Uracil instead of Thymine, as well as other minor nucleotides. The chemical structures of Adenine, Cytosine, and Guanine are all identical whether in RNA or DNA.
The major difference that RNA has from DNA is that RNA uses a ribose sugar backbone while DNA uses deoxyribose. Also, the RNA used for protein synthesis is single stranded, while the parent DNA strand that was transcribed is double stranded.
1. RNA is usually single-stranded, and DNA is double-stranded.
2. RNA has ribose, not deoxyribose.
3. RNA has uracil instead of thymine.
Nucleotides which are DNA related are Adenine, Thymine, Cytosine and Guanine. In RNA the bases are the same exept that Thymine loses an alkyl group and becomes Uracil.
Bases
All of the four nucleotides have a nitrogenous base. Adenine: has a double ring, nitrogenous base and found in DNA and RNA Thymine:single ring with nitrogenous base. ONLY FOUND IN RNA. not DNA. that is a difference from the rest of the three nucleotides. Cytosine: single ring with nitrogenous base, found in both DNA and RNA Guanine: double ring with nitrogenous base, found in DNA and RNA. also i guess you can say there is another difference with the double and single rings.
There is no difference between the sugar-phosphate arrangement in the backbone of the DNA from the plant, mammal, and bacterium. What makes plant, mammal, and bacterium different is the sequence of the DNA nucleotides.
No, first of in total, both RNA and DNA combined have five nucleotides, DNA and RNA, both consists of three of the same nucleotides, and have one that varies between the two. Both DNA and RNA, have the nucleotides, guanine, cytosine and adenine, however DNA, has the additional nucleotide thymine and RNA instead of thymine has uracil. So, DNA's nucleotides are guanine, cytosine, adenine and thymine, while RNA's are guanine, cytosine, adenine and uracil. To specifically answer the question, no DNA consists of four different nucleotides and RNA consists of three of the same nucleotides, with one differing.
DNA polymerases are the enzymes responsible for joining DNA nucleotides together. In Prokaryotes - DNA Pol III is the enzyme which adds nucleotides to the new strand during DNA replication. DNA Pol I is responsible for replacing the primers with DNA nucleotides.
DNA helicases are proteins, while DNA molecules are nucleotides.
Bases
If the DNA molecule is undergoing transcription, then mRNA nucleotides will be forming along the anti-sense strand of DNA. If the DNA molecule is undergoing replication, new DNA nucleotides will be forming along both original strands of DNA.
No, DNA, from difference with the RNA, is a double strand of nucleotides. DNA, double strand (hence the double helix nickname). RNA, single strand.
Nucleotides do not have DNA or RNA. DNA and RNA are composed of nucleotides.
All of the four nucleotides have a nitrogenous base. Adenine: has a double ring, nitrogenous base and found in DNA and RNA Thymine:single ring with nitrogenous base. ONLY FOUND IN RNA. not DNA. that is a difference from the rest of the three nucleotides. Cytosine: single ring with nitrogenous base, found in both DNA and RNA Guanine: double ring with nitrogenous base, found in DNA and RNA. also i guess you can say there is another difference with the double and single rings.
Enzyme helicase unwinds the DNA by breaking the bonds between nucleotides. Thus attaches itself at the nucleotides.
In producing a strand of DNA the nucleotides combine to form phosphodiester bonds.
The key difference between a DNA nucleotide and an RNA nucleotide is their five-carbon sugar molecules. One component of RNA is the five-carbon sugar ribose, C5H10O5. Alternatively, in DNA, the five-carbon sugar deoxyribose (C5H10O4) has one fewer oxygen atom. Another difference is in the nitrogenous bases of some DNA and RNA nucleotides. The nitrogenous base uracil (U) is unique to RNA nucleotides. Similarly, the nitrogenous base thymine (T) is unique to DNA nucleotides.
There is no difference between the sugar-phosphate arrangement in the backbone of the DNA from the plant, mammal, and bacterium. What makes plant, mammal, and bacterium different is the sequence of the DNA nucleotides.
True
A nucleotide is a single structural unit of DNA. If two or more nucleotides are combined together by a polymerase enzyme, the resulting molecule is a polymer. RNA is also composed of nucleotides and can be formed into polymers.