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What nitrogen-containing base pairs are found in a DNA molecule?
Wiki User
∙ 8y ago
Adenine Thymine Guanine Cytosine Adenine and Thymine go together and Guanine and Cytosine got together on the DNA stand
Nucleic acids are linear polymers of nucleotides. Each nucleotide consists of three components: a nucleobase, a pentose sugar, and a phosphate group . The substructure consisting of a nucleobase plus sugar is termed a nucleoside.
Nucleic acid types differ in the structure of the sugar in their nucleotides - DNA contains 2'-deoxyribose while RNA contains ribose, where the only difference is the presence of a hydroxyl group.
The nucleobases found in the two nucleic acid types are also different: adenine (A), cytosine (C), and guanine (G) are found in both RNA and DNA, while thymine (T) occurs in DNA and uracil (U) occurs in RNA.
The nucleobases are classified into two families on the ground of the type of heterocyclic compounds they contain, that is what kind of aromatic rings where one or more carbon is substituted by other atoms.
In particular the purines (A and G) present a structure containing connected five- and six-membered heterocyclic compounds, while the pyrimidines, C, T and U) presents only a six membered ring.
The double strand typical of DNA and of many zones of the secondary and tertiary structure of RNA is based on coupling between complementary nucleobases: in particular the couples A-T and C-G are resent in DNA, while A-U is present in RNA instead of A-T.
Non-standard nucleosides are also found in both RNA and DNA and usually arise from modification of the standard nucleosides. Transfer RNA (tRNA) molecules contain a particularly large number of modified nucleosides.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoNitrogenous base pairs (adenine, thymine, cytosine, and guanine) are held together by hydrogen bonds. They are held to each other by the backbone of the double helix structure of DNA.
Wiki User
∙ 14y agoA-T Adenine and Thymine C-G Cytosine and Guanine
Wiki User
∙ 11y agoDoo Doo base pairs oh and base pairs of augunine cytosine and guanine.
Wiki User
∙ 12y agoThe four nitrogenous bases found in DNA are; Adenine, Guanine, Cytosine and Thymine.
The two different pairs are A-T and C-G.
Wiki User
∙ 12y agoA with T and G with C .
Wiki User
∙ 13y agoI believe it is a hydrogen bond.
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Explain the components of DNA and explain its functional relationship to RNA and protein?
DNA or Deoxyhydro-Neucleic Acid is composed of base pairs, nitrogen and phosphates. The nitrogen and phosphates form the backbone of the DNA structure and take the shape of a double helix with the base pairs on the inside and the backbone on the outside. Thus, a molecule of DNA is actually two separate chains interwoven. The base pairs contain the information and most of the time are protected on the inside of the helix. There are four base pairs, adenine, guanine, cytosine, and thymine (represented by the letters A, T, C, and G) A bonds with T, C bonds with G via hydrogen bonding. A cannot bond to either C or G. This is a major function of the structure of DNA in protecting the information it contains. Should a base pair be incorrectly placed, the molecule will not fold up correctly, and an enzyme will likely find the problem and insert the correct base pair. This base pair bonding makes duplicating the molecule quite easy. The DNA helix unwinds, leaving two separate strands. The base pair sequences on these two strands are complementary to each other. Where there is a C on the first chain, there will be a G on the other. So to copy the molecule, complementary base pairs can be inserted onto the open chain and a back bone bonded to the new base pairs and the resultant will be two identical helices of DNA. A similar mechanism is employed in DNAs transcription To RNA. To be read, the DNA molecule unwinds, leaving two complementary chains. The chain that contains the information starts with a certain sequence which labels it as the one containing useful information. RNA base pairs are inserted onto the DNA chain in the same manner as DNA base pairs would be to copy the molecule with a few exceptions. There is no RNA base pair for thymine, instead the base pair Uracil is used. Uracil is complementary to Adenine. The backbone is also subtly different, though its immaterial to the transcription process. Once completed, this molecule of messenger RNA is complementary to the molecule of DNA, whose information it now encodes. The messenger RNA is what the protein is constructed off of. Transcription enzymes are used for such purpose and have a triplet of base pairs on one end and a amino acid on the other. The triplet of base pairs lines up with a triplet on the messenger RNA and one by one a chain of amino acids is put together. once the transcription enzymes get to the end of the messenger RNA molecule, the protein folds up.
What pairs with adenine during DNA replication?
DNA polymerases add nucleotides to the exposed base pairs according to base-pairing rules.
What does a thymine do?
Thymine is an nitrogen base in our DNA. Thymine pairs up with the other nitrogen base Adenine. This creates one base pair. Thymine and the other base does not have a function. It is the combinations of bases that encode genetic information. The other bases pairs are Guanine and Cytosine and these two nitrogen bases are also one base pair. Thymine and Adenine are always paired up and shown as AT or TA. Similar to Guanine and Cytosine, they are always paired up and shown as CG or GC . If these base pairs shows up as AG or TC for example, then it'll be a mutation.
What forms a base pair with thymine?
Adenine pairs with thymine.
What is the molecular shape of a water molecule and why?
Around the Oxygen atom in the water molecule are pieces: 2 hydrogen atoms and 2 pairs of extra valence electrons. Each piece repels each other piece, so they try to get as far away from each other as possible. The resulting geometry is called a tetrahedron (picture a 4-sided pyramid with a triangular base) with the oxygen at the center. When we draw the water molecule, usually we don't draw the 2 pairs of valence electrons, so the molecule looks like a V. note: because of the differing repulsive forces between a pair of valence electrons and a hydrogen atom, the actual geometry is not a perfect tetrahedron (central angle 109.47°), but very close (H2O central angle is 104.45°).
What are the complentary base pairs found in a DNA molecule?
Adenine - thymine Guanine - cytosine
What base always base pairs with guanine?
In a DNA molecule cytosine always pairs with guanine, the same is true for an RNA molecule.
What is the normal pairing of nitrogen bases found in a DNA molecule?
In DNA, the nitrogen base adenine (A) pairs with the nitrogen base thymine (T), and the nitrogen base cytosine (C) pairs with the nitrogen base guanine (G). So the base pairs are A:T and C:G. One way to remember is that A:T spells the word "at."
What are the base pairs that are found in DNA?
The base pairs found in DNA are adenine with thymine, and cytosine with guanine.
What are the nitrogen base pairs in the DNA molecule?
A with T and G with C .
Number of phosphates in DNA molecule with five base pairs?
Two.
What is another name for a group of bases along a DNA molecule?
Base pairs.
The complementary base pairs in a DNA molecule are stabilized by?
hydrogen bonds
What is anticondon?
An anticodon is the three-base sequence on a tRNA molecule that pairs with a specific mRNA codon.
Why does DAN have to replicate before a cell can divide?
is DAN have to reprice , the DAN molecule unzips of the base pairs
One DNA molecule in a single human cell is made up of about billion base pairs?
two
What is relation between Dalton and kilo base pairs?
MW of a double-stranded DNA molecule = (# of base pairs) X (650 daltons/base pair) Average weight of a DNA basepair (sodium salt) = 650 daltons
