| D011687 |
Purines |
A series of heterocyclic compounds that are variously substituted in nature and are known also as purine bases. They include ADENINE and GUANINE, constituents of nucleic acids, as well as many alkaloids such as CAFFEINE and THEOPHYLLINE. Uric acid is the metabolic end product of purine metabolism. |
|
|
| D011743 |
Pyrimidines |
A family of 6-membered heterocyclic compounds occurring in nature in a wide variety of forms. They include several nucleic acid constituents (CYTOSINE; THYMINE; and URACIL) and form the basic structure of the barbiturates. |
|
|
| 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. |
|
|
| D000818 |
Animals |
Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. |
Animal,Metazoa,Animalia |
|
| D001562 |
Benzimidazoles |
Compounds with a BENZENE fused to IMIDAZOLES. |
|
|
| D012510 |
Sarcoma 180 |
An experimental sarcoma of mice. |
Sarcoma 180, Crocker,Crocker Sarcoma 180 |
|
| D046508 |
Culture Techniques |
Methods of maintaining or growing biological materials in controlled laboratory conditions. These include the cultures of CELLS; TISSUES; organs; or embryo in vitro. Both animal and plant tissues may be cultured by a variety of methods. Cultures may derive from normal or abnormal tissues, and consist of a single cell type or mixed cell types. |
Culture Technique,Technique, Culture,Techniques, Culture |
|
| D055598 |
Chemical Phenomena |
The composition, structure, conformation, and properties of atoms and molecules, and their reaction and interaction processes. |
Chemical Concepts,Chemical Processes,Physical Chemistry Concepts,Physical Chemistry Processes,Physicochemical Concepts,Physicochemical Phenomena,Physicochemical Processes,Chemical Phenomenon,Chemical Process,Physical Chemistry Phenomena,Physical Chemistry Process,Physicochemical Phenomenon,Physicochemical Process,Chemical Concept,Chemistry Process, Physical,Chemistry Processes, Physical,Concept, Chemical,Concept, Physical Chemistry,Concept, Physicochemical,Concepts, Chemical,Concepts, Physical Chemistry,Concepts, Physicochemical,Phenomena, Chemical,Phenomena, Physical Chemistry,Phenomena, Physicochemical,Phenomenon, Chemical,Phenomenon, Physicochemical,Physical Chemistry Concept,Physicochemical Concept,Process, Chemical,Process, Physical Chemistry,Process, Physicochemical,Processes, Chemical,Processes, Physical Chemistry,Processes, Physicochemical |
|
| D017955 |
Poliovirus |
A species of ENTEROVIRUS which is the causal agent of POLIOMYELITIS in humans. Three serotypes (strains) exist. Transmission is by the fecal-oral route, pharyngeal secretions, or mechanical vector (flies). Vaccines with both inactivated and live attenuated virus have proven effective in immunizing against the infection. |
Brunhilde Virus,Human poliovirus 1,Human poliovirus 2,Human poliovirus 3,Lansing Virus,Leon Virus,Poliovirus Type 1,Poliovirus Type 2,Poliovirus Type 3,Polioviruses |
|