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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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See overview in Oxford Index

14

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

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).

a

Overview page. Subjects: Ecology and Conservation.

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

See overview in Oxford Index

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.

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.).

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.

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. 32 words.

symbol for

1 absorption coefficient.

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

3

null...

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

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.

symbol for

1 absorbance.

2 activity (def. 2).

3 affinity.

4 Helmholtz function.

5 mass number/nucleon number.

2′‐5′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. 71 words.

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

Å

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. 11 words.

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

A

Overview page. Subjects: Genetics and Genomics.

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

See overview in Oxford Index

A

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

in A Dictionary of Genetics

January 2013; p ublished online January 2014 .

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.

Å

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

in A Dictionary of Genetics

January 2013; p ublished online January 2014 .

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

Angstrom unit (q.v.).

a

Michael Allaby.

in A Dictionary of Ecology

P ublished online September 2015 .

Reference Entry. Subjects: Ecology and Conservation. 13 words.

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

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

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. 50 words.

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

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

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

in A Dictionary of Genetics

January 2013; p ublished online January 2014 .

Reference Entry. Subjects: Genetics and Genomics. 25 words.

the ratio between the number of adenine-thymine pairs and the number of guanine-cytosine pairs in a given DNA sample.

A “Developmental Hourglass” in Fungi

Xuanjin Cheng, Jerome Ho Lam Hui, Yung Yung Lee, Patrick Tik Wan Law and Hoi Shan Kwan.

in Molecular Biology and Evolution

June 2015; p ublished online March 2015 .

Journal Article. Subjects: Evolutionary Biology; Molecular and Cell Biology. 6303 words.

The “developmental hourglass” concept suggests that intermediate developmental stages are most resistant to evolutionary changes and that differences between species arise through...

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A “Fundamental Theorem” of Biomedical Informatics

Charles P. Friedman.

in Journal of the American Medical Informatics Association

March 2009; p ublished online March 2009 .

Journal Article. Subjects: Medical Statistics and Methodology; Bioinformatics and Computational Biology; Biomathematics and Statistics. 1079 words.

Abstract

This paper proposes, in words and pictures, a “fundamental theorem” to help clarify what informatics is and what it is not. In words, the theorem...