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A

A   Quick reference

A Dictionary of Genetics (8 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Life Sciences
Length:
18 words

1. mass number of an atom.

2. haploid set of autosomes.

3. ampere.

4. adenine or adenosine.

Å

Å   Quick reference

A Dictionary of Genetics (8 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Life Sciences
Length:
4 words

Angstrom unit (q.v.).

a

a   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
18 words

1 abbr. for adsorbed.

2 symbol for atto+ (SI prefix denoting 10−18).

3 axial.

4 year.

Å

Å   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
11 words

symbol for ångström (unit of length equal to 10−10 m).

2′‐5′A

2′‐5′A   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
71 words

symbol for any member of a series of oligonucleotides of the general formula p a A[2′p5′A] n , where p

a

a   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
32 words
symbol for 1 absorption coefficient. 2 acceleration (in vector equations it is printed in bold italic ( a ). ... More
A

A   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
46 words

symbol for

1 acid‐catalysed (of a reaction mechanism).

2 a residue of the α‐amino acid l‐alanine (alternative to

A

A   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
18 words

symbol for

1 absorbance.

2 activity (def. 2).

3 affinity.

4 Helmholtz function.

5 mass number/nucleon number.

a

a   Quick reference

A Dictionary of Ecology (5 ed.)

Reference type:
Subject Reference
Current Version:
2015

The usual abbreviation for *year (from the Latin annus, meaning year).

(A + T)/(G + C) ratio

(A + T)/(G + C) ratio   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
50 words

the ratio of the sum of the adenine plus thymine bases to the sum of the guanine plus cytosine bases

a′

a′   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
4 words

symbol for pseudoaxial.

A, B antigens

A, B antigens   Quick reference

A Dictionary of Genetics (8 ed.)

Reference type:
Subject Reference
Current Version:
2014
Subject:
Science and technology, Life Sciences
Length:
262 words

mucopolysaccharides responsible for the ABO blood group system. The A and B antigens reside on the surface of erythrocytes, and

A‐band

A‐band   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
7 words

an anisotropic band in a sarcomere.

A‐DNA

A‐DNA   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
6 words

abbr. for A‐form of DNA.

A‐kinase

A‐kinase   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
21 words

an enzyme that phosphorylates target proteins in response to a rise in intracellular cyclic AMP. See cyclic AMP‐dependent protein

A‐region

A‐region   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
40 words

the presumptive initial oxidation site of a carcinogenic polycyclic aromatic hydrocarbon, on the terminal ring of the bay region,

A‐RNA

A‐RNA   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
7 words

abbr. for A form of RNA.

A–T tailing

A–T tailing   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
51 words

homopolymer tailing of two types of duplex DNA molecule or fragment by the successive addition of adenine deoxynucleotide residues (A)

A‐transferase

A‐transferase   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
69 words

EC 2.4.1.40; recommended name: fucosylgalactose αN‐acetylgalactosaminyltransferase; other names: fucosylglycoprotein αN‐acetylgalactosaminyltransferase, [histo‐blood group]

a.c.

a.c.   Reference library

Oxford Dictionary of Biochemistry and Molecular Biology (2 ed.)

Reference type:
Subject Reference
Current Version:
2008
Subject:
Science and technology, Life Sciences
Length:
8 words

abbr.for alternating current.

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