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a Related Biological Terms:

anode

(see anion)

anoikis

apoptosis that is associated with detachment of cells from their matrix or their attachment to the 'wrong' molecules.Frisch, S.M. and Ruoslahti, E. (1997) Curr. Opin. Cell Biol. 9, 701-706

anomalous scattering (resonance scattering)

A property of diffracted radiation that is useful in X-ray crystallographic analysis for identification of diffracting centres. The otherwise symmetrical diffraction pattern is subtly perturbed when incident energy of an appropriate wavelength interacts with a diffraction centre (in practice, a sulphur or heavy metal atom) that changes the phase of the diffracted radiation in a manner that is characteristic of that atom.

anomalously replicating sequence

(see origin recognition complex (ORC))

anomer

One of two possible compounds that arise when the open-chain form of a sugar condenses via a hemiacetal or hemiketal bond and produces a new asymmetrical centre. (see also alpha (α)-isomer; beta (β)-isomer)

antagonist

A compound, often an analogue of a hormone, that binds to a receptor but elicits no response. (see also agonist)

antenna

(see photosynthetic centre)

anterograde

(see retrograde)

anthrogenic

Descriptive of a cell in which all the chromosomes are of paternal origin; as opposed to gynogenic, descriptive of a cell in which all the chromosomes are of maternal origin.

anthrone reaction

A colorimetric method for estimation of sugars that involves treatment with sulphuric acid and anthrone.

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