Answered: Explain how a single bacterium that is…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Explain how a single bacterium that is resistant to an antibiotic can multiply dramatically when an organism is treated with that antibiotic.

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There are two main ways that bacterial cells can acquire antibiotic resistance. One is through mutations that occur in the DNA of the cell during replication. The other way that bacteria acquire resistance is through horizontal gene transfer. Transfer of genes or DNA mainly through plasmids among different bacteria is an example of horizontal gene transfer and results in antibiotic resistance. Antibiotic resistance thus increase the recovery time of the patients as more number of bacteria are now present and thus more of them divide to produce still more numbers.

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