18 results found

Search Results for: virulence

Virulence

Virulence definition In biology, virulence is defined as the degree by which a pathogenic organism can cause disease.... Read More

Multiple alleles

Alleles are the pairs of genes occupying a specific spot called locus on a chromosome. Typically, there are only two alleles... Read More

Pathogenicity

Definition noun, plural: pathogenicities The capability (of a pathogenic agent) to cause disease Supplement Pathogenicity... Read More

Capsule

Definition noun, plural: (general) A small case, envelope, or covering. (anatomy) (1) A membranous sac or integument,... Read More

Streptolysin S

Definition noun A nonantigenic, oxygen-stable β-hemolytic enzyme produced by some bacteria, especially... Read More

Streptolysin O

Definition noun An oxygen-labile, immunogenic hemolysin produced by or derived from some strains of... Read More

Transposition

Definition noun, plural: transpositions (genetics) The transfer of a segment of DNA from one site to another of a... Read More

Symbiosis

Symbiosis Definition What is symbiosis? Symbiosis can be defined as any kind of relationship or interaction between two... Read More

Inoculation

Inoculation Definition In Immunology, inoculation is defined as the process of introducing an antigenic substance or... Read More

Toxicity

toxicity The quality of being poisonous, especially the degree of virulence of a toxic microbe or of a... Read More

Aggressin

Aggressin (Science: protein) a term for a protein produced by a pathogenic microbe which aids its spread in the host by... Read More

Incubation period

Definition noun The period between the initial infection and the onset of signs and symptoms Supplement The incubation... Read More

Cell wall

The cell is the structural, functional, and biological unit of all organisms. It is a membrane-bound structure containing... Read More

Resolvase

Definition noun, plural: resolvases Site-specific recombinase known for its function which is to repress... Read More

Gene transfer

Definition noun, plural: gene transfers The transfer of genes between organisms Supplement Gene transfer pertains to the... Read More

Pathogen

Definition noun, plural: pathogens An agent causing disease or illness to its host, such as an organism or infectious... Read More

Eubacteria

Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single... Read More

Virulent virus

Definition noun A virus that lyses its host immediately upon infection and often cause disease Supplement Viruses may be... Read More