| D008854 |
Microscopy, Electron |
Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. |
Electron Microscopy |
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| D008970 |
Molecular Weight |
The sum of the weight of all the atoms in a molecule. |
Molecular Weights,Weight, Molecular,Weights, Molecular |
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| D002499 |
Centrifugation, Density Gradient |
Separation of particles according to density by employing a gradient of varying densities. At equilibrium each particle settles in the gradient at a point equal to its density. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) |
Centrifugations, Density Gradient,Density Gradient Centrifugation,Density Gradient Centrifugations,Gradient Centrifugation, Density,Gradient Centrifugations, Density |
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| D002621 |
Chemistry |
A basic science concerned with the composition, structure, and properties of matter; and the reactions that occur between substances and the associated energy exchange. |
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| D002627 |
Chemistry, Physical |
The study of CHEMICAL PHENOMENA and processes in terms of the underlying PHYSICAL PHENOMENA and processes. |
Physical Chemistry,Chemistries, Physical,Physical Chemistries |
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| D003609 |
Dactinomycin |
A compound composed of a two CYCLIC PEPTIDES attached to a phenoxazine that is derived from STREPTOMYCES parvullus. It binds to DNA and inhibits RNA synthesis (transcription), with chain elongation more sensitive than initiation, termination, or release. As a result of impaired mRNA production, protein synthesis also declines after dactinomycin therapy. (From AMA Drug Evaluations Annual, 1993, p2015) |
Actinomycin,Actinomycin D,Meractinomycin,Cosmegen,Cosmegen Lyovac,Lyovac-Cosmegen,Lyovac Cosmegen,Lyovac, Cosmegen,LyovacCosmegen |
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| D003720 |
Densitometry |
The measurement of the density of a material by measuring the amount of light or radiation passing through (or absorbed by) the material. |
Densitometries |
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| D003851 |
Deoxyribonucleases |
Enzymes which catalyze the hydrolases of ester bonds within DNA. EC 3.1.-. |
DNAase,DNase,Deoxyribonuclease,Desoxyribonuclease,Desoxyribonucleases,Nucleases, DNA,Acid DNase,Alkaline DNase,DNA Nucleases,DNase, Acid,DNase, Alkaline |
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| D004267 |
DNA Viruses |
Viruses whose nucleic acid is DNA. |
DNA Virus,Virus, DNA,Viruses, DNA |
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| D004279 |
DNA, Viral |
Deoxyribonucleic acid that makes up the genetic material of viruses. |
Viral DNA |
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