Generalized Transduction

Generalized transduction is a form of horizontal gene transfer in which bacteriophages transfer bacterial DNA from one cell to another, contributing to genetic variation and bacterial evolution. During a lytic infection, a phage may accidentally package a random fragment of host DNA instead of its own genome; when this transducing particle infects another bacterium, the donor DNA can enter the recipient and integrate through homologous recombination. Because transferred genes are not limited to a particular location on the bacterial chromosome, generalized transduction can spread diverse traits, including metabolic functions and antibiotic resistance. Researchers also use it to map genes and study bacterial genetics.

Generalized Transduction - Related Videos

Research

JoVE EoE - Viral Growth and Techniques

Preparation of Bacteriophage Lysate for Generalized Transduction

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2026

Source: Saragliadis, A., et al. Producing Gene Deletions in Escherichia coli by P1 Transduction with Excisable Antibiotic Resistance Cassettes. J. Vis. Exp.(2018)This video demonstrates preparation of a bacteriophage lysate containing transducing particles. A donor strain is infected, plaques form, and the soft agar overlay is processed with chloroform to yield a clarified lysate for downstream analysis.

Education

JoVE Core - Mechanical Engineering

Generalized Hooke's Law

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2025

The generalized Hooke's Law is a broadened version of Hooke's Law, which extends to all types of stress and in every direction. Consider an isotropic material shaped into a cube subjected to multiaxial loading. In this scenario, normal stresses are exerted along the three coordinate axes. As a result of these stresses, the cubic shape deforms into a rectangular parallelepiped. Despite this deformation, the new shape maintains equal sides, and there is a normal strain in the direction of the...

Generalized Anxiety Disorder

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2025

Generalized Anxiety Disorder (GAD) is a chronic condition characterized by excessive and uncontrollable worry that persists for at least six months, significantly interfering with daily functioning. Unlike situational anxiety, which arises in response to specific stressors, GAD often occurs without a clear cause. Individuals may experience disproportionate worry about work, health, or relationships. For instance, a person might continuously fear poor health despite normal medical evaluations or...

Education

JoVE Core - Introduction to Psychology
Free Sample

Generalization, Discrimination, and Extinction

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2024

Generalization, discrimination, and extinction are key concepts in operant conditioning that influence how behaviors are learned and maintained. Generalization occurs when a behavior reinforced in one context is performed in similar situations. For instance, a student who studies diligently for calculus and receives excellent grades might apply the same study habits to psychology and history, expecting similar results. Generalization shows how learning in one setting can influence behavior in...

Social Foundations of Self II: The Generalized Other

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2025

According to George Herbert Mead, as children progress beyond the game stage, they develop a more comprehensive understanding of societal rules and norms. This cognitive and social development enables them to internalize the expectations of the broader community, refining their ability to regulate behavior.Consistent participation in organized activities is crucial in helping children recognize that their actions are not isolated but contribute to a more significant, interconnected group effort.

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