Biology

Biology

A natural science concerned with the study of life or living matter in all its forms and phenomena, especially in relation to their origin, growth, reproduction, structure, behaviour and evolution.

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Biology > Microbiology

horizontal gene transfer

Biology; Microbiology

The process in which genes are transferred from one mature, independent organism to another.

generation time

Biology; Microbiology

The time required for a microbial population to double in number.

naturally acquired passive immunity

Biology; Microbiology

The type of temporary immunity that involves the transfer of antibodies from one individual to another.

envelope

Biology; Microbiology

1. All the structures outside the plasma membrane in bacterial cells. 2. In virology it is an outer membranous layer that surrounds the nucleocapsid in some viruses.

typhoid fever

Biology; Microbiology

A bacterial infection transmitted by contaminated food, water, milk, or shellfish. The causative organism is Salmonella typhi, which is present in human feces.