gel electrophoresis with DNA from Skeleton 3 and two missing persons‚ Julia Ly and Teresa Chen to help in DNA identification. This process would allow restriction enzymes to cut by a specific restriction site and run through the gel‚ where the DNA fragments would move from the negative side to the positive side of the gel due to the negative charge of the phosphate group in DNA. The smaller the DNA fragments‚ the further they move down the gel. As mentioned above‚ the DNA that was collected‚ from
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Human VNTR Biology 101 October 23‚ 2009 Lab Partner: INTRODUCTION All human beings have genomes‚ or DNA that include all of their unique genetic information. Every strand of DNA is different per individual‚ which accounts for human diversity in the world. Variable Number Tandem Repeat (VNTR) is a short sequence of DNA that is repeated at a specific chromosomal locus. The number of tandem repeated units vary between individuals; therefore‚ every human being’s unique sequence of base pairs can
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either D-ribose or 2-deoxy-D-ribose • phosphoric acid • RNA (Ribonucleic Acid) • DNA (Deoxyribonucleic Acid) Nucleic Acids • Levels of structure • 1°structure: the order of bases on the polynucleotide sequence; the order of bases specifies the genetic code • 2°structure: the three-dimensional conformation of the polynucleotide backbone • 3°structure: supercoiling • 4°structure: interaction between DNA and proteins Pyrimidine/Purine Bases • The structures of pyrimidine and purine
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DNA and RNA Replication Deborah J Brooks Biochemistry (GRT1) Task 1 Western Governors University Objectives DNA Replication at Biochemical Level Role of Ligase Role of mRNA Role of RNA Polymerase Inhibition related to the death cap mushroom Introduction Nucleic acids are required for the storage and expression of genetic information. There are two chemically distinct types of nucleic acids. DNA (deoxyribonucleic acid). The repository of genetic information. RNA (ribonucleic acid)
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Seven: Text Questions Review Questions 1. What is DNA? Where is it found? DNA is deoxyribose nucleic acid. It contains genetic information. Found pretty much anywhere; including saliva‚ hair strand‚ etc. 2. What is mitochondrial DNA? DNA located in the mitochondria 3. What is CODIS? How does it work? CODIS is the combined DNA identification system. It has a database full of DNA samples from criminals and others who voluntarily gave their DNA. 4. What are complimentary base patterns? Why are
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recombinant DNA technology allow scientists to work with smaller fragments of DNA‚ give them more tools to dissect and analyze DNA‚ and also allow for them to make many copies of a strand of DNA. 2. Restriction enzymes are made by bacteria to cut up invading DNA. They target specific base sequences in the DNA and then work to cut out those sequences from the DNA. 3. When a restriction enzyme cuts out a portion of DNA‚ it will sometimes leave a sticky end. If two fragments of DNA are cut by the
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Double Helix Two DNA strands form a helical spiral‚ winding around a helix axis in a right-handed spiral. The two polynucleotide chains run in opposite directions. The sugar-phosphate backbones of the two DNA strands wind around the helix axis like the railing of a spiral staircase. The Backbone DNA is in the form of a double helix. This means that two helices‚ or sides‚ twist around a center. The sides of the double helix are referred to as the backbone of the DNA strand. They are made up
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Name: Anna Tran Date: August 7‚ 2015 Student Exploration: Building DNA Vocabulary: double helix‚ DNA‚ enzyme‚ mutation‚ nitrogenous base‚ nucleoside‚ nucleotide‚ replication Gizmo Warm-up The Building DNA Gizmo™ allows you to construct a DNA molecule and go through the process of DNA replication. Examine the components that make up a DNA molecule. 1. What are the two DNA components shown in the Gizmo? Nucleosides and phosphates 2. A nucleoside has two parts: a pentagonal sugar (deoxyribose)
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DNA Structure Monday‚ 15 April 2013 9:01 AM - DNA = Deoxyribonucleic acid DNA is a double-helix: it has two strands that twist around each other Each strand is made of single units call nucleotides It has a sugar-phosphate backbone Bases join the two strands by hydrogen bonds ○ These bases are cytosine‚ guanine‚ adenine and thymine. - Complementary base pairing is a key idea in genetics: C pairs with G‚ and T pairs with A. - Each strand of DNA can be millions of base pairs in length and is
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Review Questions What is DNA? Where is it found? DNA is the basic building blocks of the genetic makeup‚ and is found in a variety of places in the body such as: blood cells‚ skin cells‚ tissues‚ muscles‚ bone‚ teeth‚ hair‚ and saliva. What is mitochondrial DNA? Mitochondrial DNA is a small portion of the DNA in a eukaryotic cell‚ and can be inherited from one’s mother. What is CODIS? How does it work? CODIS is a computer software that contains DNA profiles of convicted offenders‚ murders
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