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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instances of how our knowledge of DNA has changed life in our day. Give one positive and one negative application of that knowledge and defend your answer. According to Kenneth Saladin‚ deoxyribonucleic acid (DNA) is “a long threadlike molecule with a uniform diameter of 2mm‚ although its length varies greatly from the smallest to the largest chromosomes.” What does this mean? Basically‚ it is a long string that contains a person’s genetic information. DNA has been studied overtime and it
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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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Anza Thomas 10/24/2013 CHE 261 (KC) Dr . McAtee Lab : Extraction of Caffiene Purpose: the purpose of this experiment is to extract caffeine from tea using solvent extraction techinques. Reference: Williamson‚ K.; Minard‚ R.; Masters‚ K. Macroscale and Microscale Organic Experiments‚ 2007‚ p. 137 to 171. Procedure: In a 50 mL beaker place 15 mL of water‚ 2.0059 g of sodium carbonate‚ and a wooden boiling stick. Bring the water to a boil on the ceramic heating plate. Remove the beaker
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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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Associate Program Material DNA Worksheet Answer the following in at least 100 words: Describe the structure of DNA.DNA is thread formed by two strands‚ related together to form a double helix. The double helix looks like a twisted ladder. The sides of this ladder are long unites called nucleotides and are made of three parts; a nitrogenous base‚ a sugar‚ and a phosphate group. The sides of the ladder or the nucleotides from the two separate strands of the DNA are attached by an appendage
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1. Introduction Nepal has more villages than cities and towns. More than 80% of the people are dependent on agriculture for their livelihood. Nepal is rich in forests. % of the total land is covered with forest. Majority of the rural households are subsistence farmers and rely heavily on forest products to meet their daily requirements. Fuel wood is used for cooking and heating purposes‚ fodder and grass for livestock‚ leaf litter for manure‚ and timber for constructing houses and for making agricultural
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Epigenome biomarkers a. DNA methylation In the broad sense‚ epigenetics can be seen as a bridge between the genotype and phenotype‚ where the final outcomes of a locus or a chromosome can be changed without altering the underlying DNA sequence (Goldberg et al. 2007)‚ while epigenomics aims to study the location and nature of the gemonic sequences that are epigenetically modified (Fazzari and Greally 2004). Usually‚ three mechanisms have been attributed for epigenetics – DNA methylation‚ histone modification
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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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