Tag Archives | Biology

ABZYME

Complex between antibody and enzyme. Monoclonal antibody with catalytic activity. They can be found in normal people and patients with autoimmune disorders, or they can be produced artificially.

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ACCLIMATION

Physiological adjustment to a new climate or environment.

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ACENTRIC

Chromosome or chromosomal fragment without centromere.

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ACETOGENS

Bacteria that generates acetate as a product of anaerobic respiration. They inhabit anaerobic habitats and use carbon dioxide as a carbon source and hydrogen as an energy source.

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ACETYLATORS

An organism capable for metabolic acetylation. Fast or slow acetylator status is determined by the rate of acetylation of sulfamethazine in humans.

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ACIDOPHILES

Organisms which prefer highly acidic conditions, around and below ph 2. They include species of Archaea, Bacteria, and Eukaryotes.

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ACQUIRED VARIATION

Deviation from a normal phenotype or behavior as a result of adaptation to the environment which can be easily recognized during individual developement.

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ACROCENTRIC

Chromosome whose centromere is positioned near the end of the chromosome, forming one very short and one very long arm.

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ACRYLAMIDE GEL

A hydrated polymer used as a medium for electrophoresis because of its white coloring and thickening action in water-based solutions. It is used for the separation of biomolecules, such as proteins or DNA fragments...

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ACTIN

A globular multifunctional protein found in all eukariotes. It forms two types of filaments: microfilaments (component of cytoskeleton) and thin filaments (integral part of muscle cells). Free monomer is called G-actin; linear polymer is called F-actin.

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