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14

Overview page. Subjects: Genetics and Genomics.

C a radioactive isotope of normal carbon (12C) emitting a weak beta particle. The half-life of 14C is 5,700 years. This radioisotope is extensively used as a tracer in molecular biology.

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<sup>14</sup>

Robert C. King, William D. Stansfield and Pamela K. Mulligan.

in A Dictionary of Genetics

January 2007; p ublished online January 2007 .

Reference Entry. Subjects: Genetics and Genomics. 32 words.

C a radioactive isotope of normal carbon (12C) emitting a weak beta particle. The half-life of 14C

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a

Overview page. Subjects: Ecology and Conservation.

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

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a

Michael Allaby.

in A Dictionary of Ecology

January 2010; p ublished online January 2010 .

Reference Entry. Subjects: Ecology and Conservation. 12 words.

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

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A

Robert C. King, William D. Stansfield and Pamela K. Mulligan.

in A Dictionary of Genetics

January 2007; p ublished online January 2007 .

Reference Entry. Subjects: Genetics and Genomics. 18 words.

1. mass number of an atom; 2. haploid set of autosomes; 3. ampere; 4. adenine or adenosine.

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Å

Robert C. King, William D. Stansfield and Pamela K. Mulligan.

in A Dictionary of Genetics

January 2007; p ublished online January 2007 .

Reference Entry. Subjects: Genetics and Genomics. 4 words.

Angstrom unit (q.v.).

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a

Edited by Richard Cammack, Teresa Atwood, Peter Campbell, Howard Parish, Anthony Smith, Frank Vella and John Stirling.

in Oxford Dictionary of Biochemistry and Molecular Biology

January 2006; p ublished online January 2008 .

Reference Entry. Subjects: Biochemistry. 18 words.

1 abbr. for adsorbed.

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

3 axial.

4 year.

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<i>a</i>

Edited by Richard Cammack, Teresa Atwood, Peter Campbell, Howard Parish, Anthony Smith, Frank Vella and John Stirling.

in Oxford Dictionary of Biochemistry and Molecular Biology

January 2006; p ublished online January 2008 .

Reference Entry. Subjects: Biochemistry. 32 words.

symbol for

1 absorption coefficient.

2 acceleration (in vector equations it is printed in bold italic ( a ).

3

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A

Edited by Richard Cammack, Teresa Atwood, Peter Campbell, Howard Parish, Anthony Smith, Frank Vella and John Stirling.

in Oxford Dictionary of Biochemistry and Molecular Biology

January 2006; p ublished online January 2008 .

Reference Entry. Subjects: Biochemistry. 46 words.

symbol for

1 acid‐catalysed (of a reaction mechanism).

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

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<i>A</i>

Edited by Richard Cammack, Teresa Atwood, Peter Campbell, Howard Parish, Anthony Smith, Frank Vella and John Stirling.

in Oxford Dictionary of Biochemistry and Molecular Biology

January 2006; p ublished online January 2008 .

Reference Entry. Subjects: Biochemistry. 18 words.

symbol for

1 absorbance.

2 activity (def. 2).

3 affinity.

4 Helmholtz function.

5 mass number/nucleon number.

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