a Quick reference
A Dictionary of Ecology (5 ed.)
The usual abbreviation for *year (from the Latin annus, meaning year).
2′‐5′A Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
symbol for any member of a series of oligonucleotides of the general formula p a A[2′p5′A] n , where p
a Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
A Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
symbol for
1 acid‐catalysed (of a reaction mechanism).
2 a residue of the α‐amino acid
A Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
symbol for
1 absorbance.
2 activity (def. 2).
3 affinity.
4 Helmholtz function.
5 mass number/nucleon number.
Å Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
symbol for ångström (unit of length equal to 10−10 m).
a Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
1 abbr. for adsorbed.
2 symbol for atto+ (SI prefix denoting 10−18).
3 axial.
4 year.
A Quick reference
A Dictionary of Genetics (8 ed.)
1. mass number of an atom.
2. haploid set of autosomes.
3. ampere.
4. adenine or adenosine.
(A + T)/(G + C) ratio Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
the ratio of the sum of the adenine plus thymine bases to the sum of the guanine plus cytosine bases
a′ Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
symbol for pseudoaxial.
A, B antigens Quick reference
A Dictionary of Genetics (8 ed.)
mucopolysaccharides responsible for the ABO blood group system. The A and B antigens reside on the surface of erythrocytes, and
A‐band Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
an anisotropic band in a sarcomere.
A-DNA Quick reference
A Dictionary of Biomedicine (2 ed.)
One of the double helical structures that can be adopted by DNA, a right-handed double helix fairly similar to *...
A‐DNA Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
abbr. for A‐form of DNA.
A‐kinase Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
an enzyme that phosphorylates target proteins in response to a rise in intracellular cyclic AMP. See cyclic AMP‐dependent protein
A‐region Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
the presumptive initial oxidation site of a carcinogenic polycyclic aromatic hydrocarbon, on the terminal ring of the bay region,
A‐RNA Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
abbr. for A form of RNA.
A–T tailing Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
homopolymer tailing of two types of duplex DNA molecule or fragment by the successive addition of adenine deoxynucleotide residues (A)
A‐transferase Reference library
Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)
EC 2.4.1.40; recommended name: fucosylgalactose α‐N‐acetylgalactosaminyltransferase; other names: fucosylglycoprotein α‐N‐acetylgalactosaminyltransferase, [histo‐blood group]
