The Onion Cell Lab Background: Onion tissue provides excellent cells to study under the microscope. The main cell structures are easy to see when viewed with the microscope at medium power. For example‚ you will observe a large circular nucleus in each cell‚ which contains the genetic material for the cell. In each nucleus‚ are round bodies called nucleoli. The nucleolus is an organelle‚ which synthesizes small bodies called ribosomes. Ribosomes are so small you cannot see them with the light microscope
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We wanted to extract‚ see and analyze DNA from a single strawberry( 12.11 g). The long‚ thick fibers of DNA store the information for the functioning of the chemistry of life. DNA is present in every cell of plants and animals. The DNA found in strawberry cells can be extracted using common‚ everyday materials. To start the procedure we needed the following supplies; one strawberry‚ one plastic cup‚ 10 ml of Cell Lysis Buffer (10% detergent‚ 1% NaCl)‚ one plastic zip-lock bag‚ one coffee filter‚
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DNA Extraction Lab Problem Statement: Do you think you have ever eaten DNA? Background Information: DNA is too small to see under a regular microscope‚ so how can it be studied? DNA is a large molecule found in all living things; therefore it is possible to extract it from cells or tissues. All we need to do is disrupt the cell’s plasma membrane and nuclear envelope‚ make the DNA clump together and - voila! - DNA extraction is possible. DNA extractions from onion‚ bananas‚ liver‚ or wheat
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The purpose of the DNA extraction lab was not only to inform students on how DNA is present in humans and all organisms‚ but to also educate them on how DNA can be extracted using common household materials. Also‚ the lab was very efficient as it introduced the students to extracting their own DNA found on their cheek cells as well as letting them take an observation on how DNA appears or how it is formed. Additionally‚ students were instructed through a very clear and simple procedure‚ which guided
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General Biology (BI131 01) The Cell Structure and function Abstract In this lab the structures of various cells were viewed through a compound microscope. The bacteria in yogurt was viewed a long with a slice of potato‚ and a thin skin of red onion. The potato was dyed with iodine while the red onion was dyed with methane blue. The students had to assemble the first three slides. Two more slides were provided these are the yeast and protozoa cells
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Objective: The purpose of this lab is to allow you to become familiar with a procedure for extracting DNA‚ collecting DNA samples‚ and to observe the physical characteristics of DNA Background: The wild strawberry is a diploid because it only has two sets of chromosomes. While the grocery store kind is an octoploidy because it has eight sets of chromosomes. The reason we chose the grocery store strawberry is because we’d be able to extract more DNA. Ripe strawberries make enzymes which help break
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Report #2: Strawberries Pathway: The strawberry belongs to the family Rosaceae‚ genus Fragaria. They are one of the most widely consumed fruit throughout the world. This fruit can grow pretty much anywhere except places with extreme climate change. The United States is the largest producer of strawberries in the world. The U.S. strawberry growers mostly use fields to grow this perennial crop whereas other places use mostly greenhouses due to shorter growing seasons. The strawberries that we can
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DNA Extraction of a Musa acuminata Biology Lab Report \Analyze and Interpret A number of steps are required to isolate DNA from cellular contents. Describe what happens at each step‚ and why it acts to separate the parts of the cell. /6 There are three specific steps required to isolate DNA from its cellular contents. The steps used to remove and expose DNA from its cell are: breaking down the food type you are using by crushing it‚ for example a banana or strawberries‚ exposing the substance
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Biology 110 March 2‚ 2015 DNA Lab BACKGROUND In this laboratory experiment‚ students were introduced to DNA electrophoresis. DNA electrophoresis is an instrument that many forensic scientists use to get a DNA fingerprint as an evidence for crimes. Not only can it be used for forensic science‚ people can use this for paternity test‚ as well as look for evolutionary relationships among organisms. Agarose is used to make the gel that the DNA fragments are going into. Since DNA particles are negatively
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Title Application of DNA Barcodes to Identify Various Plant Species Abstract In this experiment we applied barcodes to plants in order to identify what species they are classified under. We also compared the DNA sequences of different plant species using the ribulose-biphosphate carboxylase gene (rbcL). We took samples from a plant called Chard and performed PCR‚ DNA amplification and quantification and sequenced the DNA. During the experiment‚ we hypothesized that this year’s “nonspinach”
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