Tan 1 DNA EXTRACTION Aim : To extract the DNA from an egg yolk using various enzymes and to compare with other groups the most effective way to extract DNA. Hypothesis : To be able to observe white springy substances after mixing with enzyme and alcohol. Apparatus : -Test tube‚ spatula‚ glass rod‚ dropper‚ beaker‚ test tube rack‚ skewer. Materials : - 1 egg‚ meat tenderizer‚ salt‚ water ‚ soap‚ isopropyl alcohol 91%‚ pineapple juice. Variables : Manipulated Variable : Responding
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The Importance of DNA Evidence What is DNA? Is it these winding strands that look like ladders or is it what gives a person blonde hair and blue eyes? Actually‚ DNA is both of these things. DNA is a person’s genetic makeup–their hereditary blueprint passed on by their parents. It is a part of almost every cell in the human body. In each cell‚ a person’s DNA is the same; it stays the same throughout their lifetime. DNA is found in skin tissue‚ sweat‚ bone‚ the root and shaft of hair‚ earwax‚ mucus
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direct evidence that shows that it is not always inherited from the mother. According to the study lead author Dr Michelle Alexander‚ from the University of York‚ she said that " The one thing everyone knew about mitochondria is that it is almost exclusively passed down the maternal line " . But now there is proof that shows that it is not always inherited from the mother since there were chicks that have inherited their mitochondria from the father. Though even we have this new discovery of a mutation
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electrophoresis machine. An electric current is run through the machine and the different sized molecules form bands on the gel matrix. In visualization‚ the gel is dyed so the results become present. This is used in modern crime labs‚ figuring out DNA‚ which plays a key role in many criminal trials. The researcher completed this experiment to figure out who committed the murder using gel electrophoresis. The researcher followed five steps in this experiment; First was placing the gel in the electrophoresis
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1. Outline the Steps of DNA: a. DNA Replication begins at the Origin of Replication b. Helicase cuts hydrogen bonds and separates DNA in half c. Semiconservative replication produces two copies that each contained one of the original strands and one entirely new strand. d. Topoisomerases catalyze and guide the unknotting of DNA e. Single Strand Binding Proteins attach to the halves and keep the DNA molecules separated (they are needed because the sides are attracted to each other and with out
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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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DNA Deoxyribonucleic acid DNA Deoxyribonucleic acid DNA is a nucleic acid that is basis of genetic information. It is like a set of instructions for our bodies and genetic codes. DNA has many different components that make it up such as hydrogen‚ oxygen‚ nitrogen‚ and phospurous. The structure has two long polymers of a simple unit called nucleotides. Holding the back of the structure is sugar and phosphate which are attached by ester bonds. Bonded to each sugar is 4 different types
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GLIRICIDIA SEPIUM LEAF EXTRACT FOR HOGS MANGE INVESTIGATORY PROJECT IN SCIENCE SUBMITTED BY: CRISTEL GELIANNE M. ALOG SUBMITTED TO: MRS. LERMA A. AROSA INTRODUCTION A. Background of the study Gliricidia sepium is a kind of tree common in the community. People use it for fuel unaware of its value as medicinal plant. The idea that gliricidia
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History of DNA Technology During the early1960s‚ there was great progress being made in beginning to understand the structure of genes and the mechanisms of their replication‚ expression‚ and regulation in prokaryotes and the viruses that began to infect them (Berg 2010). However at the time it was still unknown as to whether or not these findings applied to eukaryotes. This is because the tools used at the time for exploring genetic properties were not fit for the task. By the spring of 1972‚ the
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Dulag National High School Dulag‚ Leyte Pesticide From Radish ( Raphanus Sativus ) Extract A research proposal Submitted to: Glendale B. Lamiseria In partial fulfillment of the Subject Entitled Research and Statistics By: Julie Glynes P. Lumpas II-SSC October ‚ 2012 Rationale of the Study Radish is an annual herb widely grown for its edible fleshy‚ hot tasting roots maybe red‚ white or purple. Radish is a coarse annual crop plant. Roots are fleshy‚ pungent and variable
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