This document of BIO 101 Week 2 Discussion Questions shows the solutions to the following problems: DQ 1: What are DNA‚ chromosomes‚ and genes? How are the terms similar? How are they different? DQ 2: Choose TWO of the following topics. Define each of your choices and list some pros and cons involved with each. Try to use examples that you find interesting and/or current research in your responses as much as possible. BIO 101 Week 1 Individual Assignment What Is Life BIO 101 Week 2 Individual
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this‚ forensic scientists are forced to "bring out the big guns." Researchers can compare DNA samples from bodies to those taken directly from the victim: from hair‚ a toothbrush‚ a family member‚ and etcetera (Whitfield 6). As a result of the terrorist attacks‚ forensic scientists have come up with innovative tests and ways to interpret the resulting identification data (Whitfield 1). According to forensic DNA expert John Butler (National Institute of Standards and Technology in the city of Gathersburg
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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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Diffusion: Temperature’s Effect on Diffusion: We added potassium to a two tubes with different temperatures: Temperature Result Room Temperature Slow change in Color Boiled water Fast change in Color Conclusion : The increase in temperature assists in increasing the speed of diffusion. Diffusion of Glucose and Starch: A. Color Change: State/Results In the Tube In the Beaker Color Glucose Color Glucose Initial State (Before placing tube into graduated cylinder) Transparent Yes
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Biologists over the years have observed that some species evolve in response to the changes in another. These changes can occur in different levels and in different intensities. Some species exhibit molecular changes such as the structures of macromolecules like proteins or lipids‚ while others show morphological and behavioural changes in the presence of other organisms. Some evolutionary changes that happen in a species can be a change that is most especially directed towards its adaptation in
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DNA SPOOLING ISOLATION OF DNA FROM ONION INTRODUCTION This project will demonstrate several basic steps required for isolation of chromosomal DNA from cells. To extract the chromosomal DNA‚ both the cell membrane and the nuclear membrane must be broken open. This is accomplished by disrupting the membranes with a solution of detergent and salt‚creating a cell homogenate. Once the DNA is released from the nucleus‚ it must be protected from nucleases‚ enzymes which will degrade the DNA. Keeping
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Period 1 10/14/12 Enzyme lab Enzymes are biological catalysts that speed up the process of chemical reactions. They are also proteins‚ and most enzymes activities occur within organism. They decrease activation energy‚ energy that is needed to start a chemical reaction. Enzymes are substrate specific substrates ending in "-ase"‚ enzymes ending in "-ase". External factors‚ such as temperature‚ pH‚ and concentration of the substrate‚ affect the enzymes activity in the lab‚ pectase and cellulase will
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Scientific Writing and Standard Components of a Lab Report INTRODUCTION Writing is a powerful tool. Effective communication is necessary to succeed in any field. As a professional‚ you must communicate with both your colleagues‚ and the community at large. Writing is the means of showing the value of your work. The specific style of writing in science is based on the unique audience of readers. In addition‚ writing allows one to organize one’s thoughts and clarify ideas‚ and it fosters abstract
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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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Strawberry DNA lab Extraction Purpose: The purpose of this lab experiment is to see if this particular type of fruit which in this case is a strawberry contains DNA. Using materials such as a Ziploc bag to help keep the entire strawberry in one place while it gets smashed and test tube to help better see the DNA and break down of the liquid in the left over strawberry sediments. Background information: The long thick fibers of DNA store the information for the function of the chemistry
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