| D009154 |
Mutation |
Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations. |
Mutations |
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| D009522 |
Newcastle disease virus |
The most well known avian paramyxovirus in the genus AVULAVIRUS and the cause of a highly infectious pneumoencephalitis in fowl. It is also reported to cause CONJUNCTIVITIS in humans. Transmission is by droplet inhalation or ingestion of contaminated water or food. |
Avian Paramyxovirus 1,Paramyxovirus 1, Avian |
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| D010948 |
Viral Plaque Assay |
Method for measuring viral infectivity and multiplication in CULTURED CELLS. Clear lysed areas or plaques develop as the VIRAL PARTICLES are released from the infected cells during incubation. With some VIRUSES, the cells are killed by a cytopathic effect; with others, the infected cells are not killed but can be detected by their hemadsorptive ability. Sometimes the plaque cells contain VIRAL ANTIGENS which can be measured by IMMUNOFLUORESCENCE. |
Bacteriophage Plaque Assay,Assay, Bacteriophage Plaque,Assay, Viral Plaque,Assays, Bacteriophage Plaque,Assays, Viral Plaque,Bacteriophage Plaque Assays,Plaque Assay, Bacteriophage,Plaque Assay, Viral,Plaque Assays, Bacteriophage,Plaque Assays, Viral,Viral Plaque Assays |
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| D002478 |
Cells, Cultured |
Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. |
Cultured Cells,Cell, Cultured,Cultured Cell |
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| D002642 |
Chick Embryo |
The developmental entity of a fertilized chicken egg (ZYGOTE). The developmental process begins about 24 h before the egg is laid at the BLASTODISC, a small whitish spot on the surface of the EGG YOLK. After 21 days of incubation, the embryo is fully developed before hatching. |
Embryo, Chick,Chick Embryos,Embryos, Chick |
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| D004372 |
Ducks |
A water bird in the order Anseriformes (subfamily Anatinae (true ducks)) with a broad blunt bill, short legs, webbed feet, and a waddling gait. |
Duck |
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| D005814 |
Genes, Viral |
The functional hereditary units of VIRUSES. |
Viral Genes,Gene, Viral,Viral Gene |
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| 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 |
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| D001358 |
Avian Sarcoma Viruses |
Group of alpharetroviruses (ALPHARETROVIRUS) producing sarcomata and other tumors in chickens and other fowl and also in pigeons, ducks, and RATS. |
Avian Sarcoma Virus B77,Chicken Sarcoma Virus B77,Chicken Tumor 1 Virus,Fujinami sarcoma virus,Sarcoma Viruses, Avian,Avian Sarcoma Virus,Fujinami sarcoma viruses,Sarcoma Virus, Avian,Virus, Avian Sarcoma,Viruses, Avian Sarcoma,sarcoma virus, Fujinami,virus, Fujinami sarcoma,viruses, Fujinami sarcoma |
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| D013045 |
Species Specificity |
The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species. |
Species Specificities,Specificities, Species,Specificity, Species |
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