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DNA EXTRACTION FROM ONION STUDENT INSTRUCTIONS The process of extracting DNA from a cell is the first step for many laboratory procedures in biotechnology The scientist must be able to separate DNA from the unwanted substances of the cell gently enough so that the DNA is not broken up

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DNA EXTRACTION FROM ONION Prepared by the Office of Biotechnology Iowa State University CONTENTS Introduction Materials Teacher Preparation Student Instructions INTRODUCTION DNA is present in the cells of all living organisms This procedure is designed to extract DNA from onion in sufficient quantity to be seen and spooled It is

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The cells in a sample are separated from each other often by a physical means such as grinding or vortexing and put into a solution containing salt The positively charged sodium ions in the salt help protect the negatively charged phosphate groups that run along the backbone of the DNA To get a

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Purpose This activity is a simpler form of the laboratory procedure practiced routinely in genetics labs around the world This is the way to obtain DNA to study for whatever a scientist may wish to learn about a plant or animal Objectives Students will be able to perform simple DNA isolation with basic lab skills

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DNA EXTRACTION FROM ONION STUDENT INSTRUCTIONS The process of extracting DNA from a cell is the first step for many laboratory procedures in biotechnology

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The DNA extraction process is a fairly simple biochemical procedure that can be divided into three major steps breaking open the cell lysis destroying membranes within the cell and precipitating the DNA out of the solution The following sections describe how each step relates to the physical and biochemical properties of DNA Cell Lysis

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Extraction of DNA from an Onion Welcome to nobel scas

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