Biology is designed for multi-semester biology courses for science majors. It is …
Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.
By the end of this section, you will be able to:Describe horizontal …
By the end of this section, you will be able to:Describe horizontal gene transferIllustrate how prokaryotes and eukaryotes transfer genes horizontallyIdentify the web and ring models of phylogenetic relationships and describe how they differ from the original phylogenetic tree concept
This resource is a video abstract of a research paper created by …
This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:
"The transfer of genetic material between microbes, or horizontal gene transfer, plays a critical role in microbial evolution. It’s the process that enables bacteria to quickly acquire resistance to antibiotics. Unfortunately, current tracking methods can only infer what genes were swapped well after a transfer event has occurred. To address this gap, researchers have developed a real-time approach called “transductomics." The technique sequences both the complete microbial community in a sample as well as virus-like particles (VLPs) that serve as the vehicles for horizontal gene transfer. Comparing the sequencing reads between the two reveals patterns that can be linked to DNA transfer. The team tested their approach on a fecal sample obtained from a single mouse. Results showed indications of specialized transduction by different prophages as well as patterns of potential generalized transduction or gene transfer agents. Interestingly, nearly a quarter of the transduction patterns were unknown..."
The rest of the transcript, along with a link to the research itself, is available on the resource itself.
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