Guanine
Guanine (G) is one of four chemical bases in DNA, with the other three being adenine (A), cytosine (C), and thymine (T).
Guanine: A nitrogenous base. Pairs with cytosine in DNA molecules.
Meiosis: the process of cell division in which a single cell produces four daughter cells each of which contains half of the number of chromosomes of the parent cell.
Guanine: One of the four nucleotide bases in DNA or RNA; pairs with cytosine.
[edit] L
Locus: a location on a chromosome where a particular gene resides.
Guanine (G): A base; one of the molecular components of DNA and RNA. Always bonds with cytosine (G-C).
guanine One of the nitrogenous bases in nucleic acids, guanine is one of the two purine bases. PICTURE
gymnosperms Flowerless, seed-bearing land plants; the ?rst seed plants; living groups include the pines, ginkgos, and cycads. Naked seeds.
Guanine (G): A nitrogenous base, one member of the base pair GC (guanine and cytosine).
H ...
Guanine
One of the four bases in DNA that make up the letters ATCG, guanine is the "G". The others are adenine, cytosine, and thymine. Guanine always pairs with cytosine. [Talking Glossary]
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Guanine (G)
Guanine is a purine base (nitrogenous base) and constituent of nucleotides and as such one member of the base pair G-C (guanine and cytosine).
Guanine
These hydrogen bonding modes are for classical Watson-Crick base pairing. Other hydrogen bonding modes are seen in both DNA and RNA.
guanine A white crystalline purine base, C5H5N5O, occurring in various animal tissues and in guano and other animal excrements.
guano The accumulation of the excrement of seabirds.
1. guanine or guanosine
2. Glycine
3. free energy (G)
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
A pair of complementary nitrogenous bases in a DNA molecule--adenine-thymine and guanine-cytosine. Also, the unit of measurement for DNA sequences. Bioaugmentation.
Base sequence -- a partnership of organic bases found in DNA and RNA; adenine forms a base pair with thymine (or uracil) and guanine with cytosine in a double-stranded nucleic acid molecule.
These nucleotides are composed of a nitrogenous base (A = adenine, T = thymine, C = cytosine, G = guanine) attached to a sugar called deoxyribose and the sugar is attached to a phosphate group which is negatively charged.
He found it contained four nitrogenous bases: cytosine, thymine, adenine, and guanine; deoxyribose sugar; and a phosphate group.
An organic acid and polymer composed of four nitrogenous bases--adenine, thymine, cytosine, and guanine linked via intervening units of phosphate and the pentose sugar deoxyribose.
(GMP is the guanine-containing cousin of AMP.)
The drop in cGMP closes Na+ and Ca2+ channels in the plasma membrane of the rod.
Nucleotide A subunit of DNA or RNA consisting of a nitrogenous base (adenine, guanine, thymine, or cytosine in DNA; adenine, guanine, uracil, or cytosine in RNA), a phosphate molecule, and a sugar molecule (deoxyribose in DNA and ribose in RNA).
Cap: A methylated guanine residue (GTP), which is added to the 5' end of eukaryotic mRNAs in a post-transcriptional reaction. It protects the mRNA against 5'-exonuclease, stabilises the mRNA and enhances its translation.
One of these is the homologue of Rabatin-5, a protein that, in mammalian cells, binds both Rab5 and Rabex-5, a guanine-nucleotide exchange factor for Rab5.
Two nitrogenous (purine or pyrimidine) bases (adenine and thymine or guanine and cytosine) held together by weak hydrogen bonds. Two strands of DNA are held together in the shape of a double helix by the bonds between base pairs.
For example, thioproline is an analog of the amino acid proline, and azaguanine is an analog of the nucleotide guanine.
Included in this group are the nucleoside analogs, chemicals that are similar to one of the bases (adenine, cytosine, guanine, and thymine) that comprise DNA, but sufficiently different enough to block viral DNA synthesis.
Each strand consists of alternating phosphate (PO4) and pentose sugar (2-deoxyribose), and attached on the sugar is a nitrogenous base, which can be adenine, thymine, guanine, or cytosine.
PURINE BASES - Adenine (A) or Guanine (G) (see NUCLEOTIDE).
PULSED-FIELD GEL ELECTROPHORESIS (PFGE) - Separation of large (>50 kb) pieces of DNA, including complete chromosomes and genomes, ...
purine base; basic compounds related in structure to uric acid; examples include adenine and guanine, which are bases and constituents of nucleic acids
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
complementary base pairs - base-pairing between a larger purine base (adenine or guanine) and a smaller pyrimidine base (cytosine or thymine) while DNA is in its double-helix. (A/T, G/C) ...
[Gk. purinos, fiery, sparkling]
A nitrogenous base, such as adenine or guanine, with a characteristic two-ring structure; one of the components of nucleic acids.
pyramid, ecological
See Ecological pyramid.
Nucleotide A building block of a nucleic acid consisting of a base (adenine, thymine, cytosine, guanine, uracil) joined to a sugar (ribose or deoxyribose) and a phosphate.
Null mutation A mutation which leads to the absence of a gene product.
The adenine of one strand is always hydrogen-bonded to a thymine on the other. Similarly, Guanine is always paired with Cytosine.
A-T
G-C ...
There are four different kinds of nucleotides: adenine (A), guanine (G), cytosine (C) and thymine (T). Genes are sequences of nucleotides that code for proteins. Within a gene, each block of three nucleotides is called a codon.
A right-handed double helix with the following characteristics: the two strands are antiparallel; the bases are inside the helix and the phosphates and deoxyribose sugars are on the outside; adenine forms hydrogen bonds with thymine, and guanine ...
Nucleoside In molecular biology; a molecule composed of a sugar (2' deoxyribose in DNA; ribose in RNA) which is linked to a purine (adenine or guanine) or a pyrimidine (thymine (DNA), cytidine or uridine (RNA)).
 See also: DNA, Adenine, Cytosine, Molecule, Nucleotide
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