wberry DNA Lab ReportMeredith Anderson Mrs. Berman Biology October 17‚ 2012 Extracting DNA from Strawberries Problem/Question: Successfully extract the DNA from strawberries. Theory/Hypothesis: N/A Variables: Independent – strawberries Dependant – the DNA Controlled – 450 ml of water‚ 50 ml of soap‚ 1 tsp of salt‚ 5 ml isopropyl alcohol Apparatus and Materials: N/A Procedure and Control of Variables: N/A Data Collected: See attached paper. Data Processing and Presentation:
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The DNA Identification Act of 1994 authorized the establishment of a national index of: (1) DNA identification records of persons convicted of crimes‚ (2) analyses of DNA samples recovered from crime scenes‚ and (3) analyses of DNA samples recovered from unidentified human remains. In addition‚ it specified several standards for those laboratories that contribute profiles to the national index system‚ including proficiency testing requirements for DNA analysts and privacy protection standards related
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sequencing; Highthroughput sequencing technology Canonical DNA: • • • • • Chemical structure and properties of B-DNA Enzymes that function on B-DNA DNA dissociation and reassociation kinetics of B-DNA Chromicity of B-DNA Major and minor grooves and DNA-protein interaction in gene regulation of B-DNA Non-canonical DNA: • Structure of A-DNA and Z-DNA; Comparison of A‚ B and Z-DNA; • Discovery of Z-DNA in vitro and in living cells; • Z-DNA and human genetic diseases Role of Major and Minor Grooves in Gene Regulation
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Forensic DNA testing In Today’s forensic DNA testing is used all around the world to catch criminals. Forensic DNA testing is able to catch suspects and analyze their data correctly to be able to identify their suspect and be sure to identify their suspect and be sure it is the right person. DNA testing is 100% accurate and is the most effective type of testing there is and can change many lives such as criminals‚ fathers and children. Before forensic DNA testing
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serial dilution of the DNA concentration. As shown by the picture‚ only the first drop of the DNA/EtBr mixture for the DNA standards fluoresce brightly under the UV light‚ while the other spots for both the DNA standards and the unknown DNA standards were all dimly fluoresce. This was due to pipetting error; the tip of the pipette did not touch the liquid (TE) in the micro-centrifuge‚ so no DNA standards were transferred into the liquid. In the first row (known DNA standards)‚ the DNA was inserted into
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Date: Student Exploration: DNA Fingerprint Analysis Vocabulary: codon‚ DNA‚ DNA fingerprint‚ genotype‚ identical twins‚ nitrogenous base‚ phenotype‚ trait Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. The two navy officers shown at left are identical twins. Why do you think identical twins look so similar? Identical twins look so similar because identical twins have the same genetic makeup‚ meaning‚ the same DNA (same nitrogenous bases). This is because
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1. How DNA replication takes place? DNA replication occurs within the interphase‚ In this phase two strands of DNA serve as templates for new DNA strands that are forming. As the DNA separates a replication bubble is formed‚ this is where two replication forks are formed that grow in two directions. DNA polymerase creates new strands as nucleotides are added individually to each strand. As each nucleotide pairs itself to the complimentary nucleotide on the opposite strand‚ new DNA molecules are formed
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Date: 09/21/2012 Result The purpose of the experiment is to measure the amount of DNA extracted from a strawberry. In the experiment‚ we measured the absorbance of different concentrations of Methylene Blue. The data collected by our group is presented on Figure 1 and the average absorbance measured by whole class is stated on Figure 2. Table 3 shows the measurement on the amount of strawberry DNA extracted. In Figure 1 and Figure 2‚ the data will be presented Standard Curve Graph. The
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their 1953 Nature publication‚ Watson and Crick announced their landmark discovery: DNA exists in the form of a right handed‚ three-dimensional double helix. They described their DNA model as two DNA strands connected by hydrogen bonds between complementary bases. Adenine bases are always paired with thymines‚ and cytosines are always paired with guanines. Watson and Crick identified the anti-parallel configuration of DNA strands; each 5’ end of one strand is paired with the 3’ end of its complementary
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that DNA contains nitrogenous bases the principle of base pairing the X-ray diffraction pattern of DNA‚ which helped uncover its double helix structure how to sequence DNA molecules the bonding energy of DNA molecules 2. Which of the following carries amino acids to ribosomes‚ where amino acids are linked into the primary structure of a polypeptide? mRNA tRNA hnRNA rRNA all of these 3. The nitrogenous base found in RNA but not in DNA is
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