From Gene to Function: A Safe Laboratory Exercise Promoting the Learning of the Central Dogma of Biology for the Undergraduate Biology Curriculum<xref ref-type="fn" rid="fn1-jmbe-21-61">†</xref>

The central dogma of biology, which explains how the information in genes flows into proteins, can be challenging to teach in the undergraduate classroom. To allow students to understand the correlation between genes and protein functions, we have developed a practical laboratory activity that compl...

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Autores principales: Manuela Tripepi, Morgan Clear, Jack Lyons Bondi, Elvira Brunelli, Arianna Berardi
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Publicado: American Society for Microbiology 2020
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spelling oai:doaj.org-article:29d25124d2aa470585610cac8a0ebe882021-11-15T15:04:32ZFrom Gene to Function: A Safe Laboratory Exercise Promoting the Learning of the Central Dogma of Biology for the Undergraduate Biology Curriculum<xref ref-type="fn" rid="fn1-jmbe-21-61">†</xref>10.1128/jmbe.v21i2.21311935-78851935-7877https://doaj.org/article/29d25124d2aa470585610cac8a0ebe882020-01-01T00:00:00Zhttps://journals.asm.org/doi/10.1128/jmbe.v21i2.2131https://doaj.org/toc/1935-7877https://doaj.org/toc/1935-7885The central dogma of biology, which explains how the information in genes flows into proteins, can be challenging to teach in the undergraduate classroom. To allow students to understand the correlation between genes and protein functions, we have developed a practical laboratory activity that complements classroom learning. By using PCR analysis targeting the flagellin gene flgA1, students will investigate the genotype of an unknown strain of Haloferax volcanii, a halophilic archaeon appropriate for activities with undergraduates as it is nonpathogenic, inexpensive, easy to grow using “grocery store ingredients,” and offers many genetic tools. This species swims by means of flagella, and its motility can be tested using modified agar plates. Motile colonies will form swimming halos; meanwhile motility mutants will show only a dot on the motility plate, at the point of inoculation. First students will extract DNA for PCR amplification. They will not be told whether the strain they are assigned is motile or not. They will learn how to design primers for the target gene and set up the PCR reaction. Subsequently they will set up a motility assay and control of the provided strain.  In the next laboratory period, students perform gel electrophoresis on the products of their PCR reactions and analyze the results. They compare these to the results of the motility assay to confirm the motility of the strain. In summary, this inquiry-based lab is easy and safe to perform and allows students to follow the information flow from a gene to a protein product.Manuela TripepiMorgan ClearJack Lyons BondiElvira BrunelliArianna BerardiAmerican Society for MicrobiologyarticleSpecial aspects of educationLC8-6691Biology (General)QH301-705.5ENJournal of Microbiology & Biology Education, Vol 21, Iss 2 (2020)
institution DOAJ
collection DOAJ
language EN
topic Special aspects of education
LC8-6691
Biology (General)
QH301-705.5
spellingShingle Special aspects of education
LC8-6691
Biology (General)
QH301-705.5
Manuela Tripepi
Morgan Clear
Jack Lyons Bondi
Elvira Brunelli
Arianna Berardi
From Gene to Function: A Safe Laboratory Exercise Promoting the Learning of the Central Dogma of Biology for the Undergraduate Biology Curriculum<xref ref-type="fn" rid="fn1-jmbe-21-61">†</xref>
description The central dogma of biology, which explains how the information in genes flows into proteins, can be challenging to teach in the undergraduate classroom. To allow students to understand the correlation between genes and protein functions, we have developed a practical laboratory activity that complements classroom learning. By using PCR analysis targeting the flagellin gene flgA1, students will investigate the genotype of an unknown strain of Haloferax volcanii, a halophilic archaeon appropriate for activities with undergraduates as it is nonpathogenic, inexpensive, easy to grow using “grocery store ingredients,” and offers many genetic tools. This species swims by means of flagella, and its motility can be tested using modified agar plates. Motile colonies will form swimming halos; meanwhile motility mutants will show only a dot on the motility plate, at the point of inoculation. First students will extract DNA for PCR amplification. They will not be told whether the strain they are assigned is motile or not. They will learn how to design primers for the target gene and set up the PCR reaction. Subsequently they will set up a motility assay and control of the provided strain.  In the next laboratory period, students perform gel electrophoresis on the products of their PCR reactions and analyze the results. They compare these to the results of the motility assay to confirm the motility of the strain. In summary, this inquiry-based lab is easy and safe to perform and allows students to follow the information flow from a gene to a protein product.
format article
author Manuela Tripepi
Morgan Clear
Jack Lyons Bondi
Elvira Brunelli
Arianna Berardi
author_facet Manuela Tripepi
Morgan Clear
Jack Lyons Bondi
Elvira Brunelli
Arianna Berardi
author_sort Manuela Tripepi
title From Gene to Function: A Safe Laboratory Exercise Promoting the Learning of the Central Dogma of Biology for the Undergraduate Biology Curriculum<xref ref-type="fn" rid="fn1-jmbe-21-61">†</xref>
title_short From Gene to Function: A Safe Laboratory Exercise Promoting the Learning of the Central Dogma of Biology for the Undergraduate Biology Curriculum<xref ref-type="fn" rid="fn1-jmbe-21-61">†</xref>
title_full From Gene to Function: A Safe Laboratory Exercise Promoting the Learning of the Central Dogma of Biology for the Undergraduate Biology Curriculum<xref ref-type="fn" rid="fn1-jmbe-21-61">†</xref>
title_fullStr From Gene to Function: A Safe Laboratory Exercise Promoting the Learning of the Central Dogma of Biology for the Undergraduate Biology Curriculum<xref ref-type="fn" rid="fn1-jmbe-21-61">†</xref>
title_full_unstemmed From Gene to Function: A Safe Laboratory Exercise Promoting the Learning of the Central Dogma of Biology for the Undergraduate Biology Curriculum<xref ref-type="fn" rid="fn1-jmbe-21-61">†</xref>
title_sort from gene to function: a safe laboratory exercise promoting the learning of the central dogma of biology for the undergraduate biology curriculum<xref ref-type="fn" rid="fn1-jmbe-21-61">†</xref>
publisher American Society for Microbiology
publishDate 2020
url https://doaj.org/article/29d25124d2aa470585610cac8a0ebe88
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