A unit of mass that equals the weight of a hydrogen atom, or 1.657 x 10-24 grams. Named after John Dalton, an early nineteenth century British chemist who proposed the atomic theory of matter.
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The atomic mass unit; a measure of mass for atoms and subatomic particles.
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dalton (Da) n. A unit of mass (also known as an atomic mass unit, amu), equal to the mass of a hydrogen atom (1.67 x 1024 g). When measured in grams, it is equal to the reciprocal of Avagadro's number.
Dalton. A unit of measurement equal to the mass of a hydrogen atom, 1.67 x 10E-24 gram/L (Avogadro's number).
Death phase. The final growth phase, during which nutrients have been depleted and cell number decreases. (See Growth phase).
Dalton - measure of molecular weight or mass. One hydrogen atom has mass of 1 Da. Proteins and other macromolecule molecular weights are usually measured in kDa or kD (kilodaltons) - 1000 Da.
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Unit of molecular mass approximately equal to the mass of a hydrogen atom (1.66 × 10−24 g).
dalton Atomic Weight Unit ; the mass of one proton or one neutron.
dark reaction that part of the photosynthetic process that, in the absence of light, ...
The unit of weight is the dalton, one-twelfth the weight of an atom of 12C. Thus the molecular weight (MW) of water is 18 daltons.
The smallest ones have a molecular weight of less than 100 daltons (daltons are the units of molecular weight, for example, hydrogen has a molecular weight of one dalton).
The pores are about 125 million daltons in molecular weight and consist of around 50 (in yeast) to 100 proteins (in vertebrates).
At the time Dalton proposed atoms, he was trying to explain larger things in terms of smaller things with properties that added up to the properties of the whole.
Proton particle in the nucleus with a positive charge of +1 and an atomic mass number of 1 Dalton. Neutron a non-charged nuclear particle with the same mass as the proton.
The size is described by the molecular weight given in the units of a dalton. One dalton is the molecular mass of one hydrogen atom.
Atomic mass unit (amu or dalton): The basic unit of mass on an atomic scale. One amu or dalton is one-twelfth the mass of a carbon 12 atom (in other words, the mass of a hydrogen atom, 1.66 x 10-24 g). Therefore, there are 6.
Acrylamide gels: A polymer gel used for electrophoresis of DNA or protein to measure their sizes (in daltons for proteins, or in base pairs for DNA). See "Gel Electrophoresis".
calculated molecular weight Predicted molecular weight (in daltons) of a protein.The predictions were calculated using the Bioperl function get_mol_wt (found in the SeqStats object of Bioperl 0.7).
The mass of subatomic particles is too small to be conveniently measured in grams so atomic mass units (amu) are used instead. Atomic mass units are also called daltons. One amu (or dalton) is approximately 1.7 X 10-24g.
Each antibody "monomer" has a molecular weight of approximately 150,000 Daltons ... Antibody isotypes (classes) are named IgA, IgG, IgD, IgE, and IgM to correspond ...
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macromolecule - molecule such as a protein, nucleic acid, or polysaccharide with a molecular mass greater that a few thousand daltons ...
(e) Gap Junctions: Protein tubes between adjacent cells form, for relatively small molecules (up to about 1000 dalton) a continuous cytoplasm between cells ...
See also: Trans, Molecule, Protein, Organ, Biology