NDLI: DNA the Easy Way

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DNA the Easy Way

Content Provider	howtosmile
Author	Schumann, Gail Jasalavich, Claudia A.
Copyright Year	2011
Description	This demonstration can be used to help learners visualize DNA by lysing (breaking open) bacterial cells on a slide and “stringing up” the DNA with a toothpick in less than one minute. This technique can also be used to study bacteria because only Gram-negative bacteria lyse in 3% KOH; Gram-positive bacteria do not. The technique is equivalent to the Gram-stain reaction, but does not require a microscope or potentially messy stains. This lesson guide includes instructions for two demonstrations, suggestions for modifications for advanced classes, study questions with answers for learners, and supplemental information and references.
Related Links	https://www.apsnet.org/edcenter/disimpactmngmnt/labexercises/DNA_Easy/Pages/default.aspx
Language	English
Access Restriction	Open
Rights Holder	The American Phytopathological Society
Subject Keyword	Lysing Bacteria Cells DNA Gram-negative Gram-stain Lyse Genetics Taxonomy Medicine Cell wall Peptidoglycan Engineering and Technology Engineering Bioengineering Biomedical Engineering Technology Medical Technology Agriculture and Biotechnology Life Sciences Cell Structure and Function Chemistry of Life Diversity of Life Viruses and Bacteria Classification Heredity and Genetics DNA Structure and Function Genetic Engineering Human Body Physical Sciences Chemistry Chemical Reactions The Nature of Science The Scientific Process Conducting Investigations Formulating Explanations
Content Type	Text
Educational Role	Student Teacher
Educational Use	Assessment
Time Required	PT10M0S
Education Level	Class V Class VI Class VII Class VIII Class IX Class X Class XI Class XII
Pedagogy	Experimental Activity
Resource Type	Hands-on
Subject	Genetics and Molecular Biology Technical

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