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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Title: E. Coli Transformation with a Plasmid DNA Containing the GFP Gene Introduction: Bacterial transformation is the process of bacteria taking in and expressing exogenous DNA. This has led to many other discoveries. In order for bacterial transformation to occur the bacteria must be in a certain physical state to be able to take in DNA. This is called competency and it allows the cell membrane to be permeable so DNA can pass through. Currently researchers are studying the transformation
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BY130 ESSENTIAL/INTRODUCTORY CELL BIOLOGY AND BIOCHEMISTRY 2012-2013 SAMPLE QUESTIONS ON NUCLEIC ACIDS AND MACROMOLECULES 1. Which of the following statements about the structure of DNA shown in the figure on the right is false? The width of the DNA molecule is variable since it can accommodate nucleotides containing varying numbers of nitrogen-based "rings." Hydrogen bonds determine which nitrogenous bases can pair together. A total of 10 pairs of nucleotides are
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Year 10 Science: DNA Presentation Your presentation must include: Criteria - Diagram Explanation A - Clearly explains reasons why diagram was used‚ and clearly explains the structure of DNA An explanation of how you chose what sort of labelled diagram to include: The structure of the double helix allows for the DNA to be tightly packed into chromosomes. It also provides an extremely stable backbone with the negatively charged phosphates pointing to the outside of the molecule. This charge aids
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out of molecules of DNA requires the use of special: A. digestive enzymes B. restriction enzymes C. enzymes from peroxisomes D. microscopic scalpels 2. To seal the cut fragments of DNA together‚ an enzyme called __________ is used. A. amylase B. peptidase C. trypsin D. ligase 3. Choose the correct sequence for gene transfer procedures. A. cleaving DNA‚ recombining DNA‚ cloning‚ screening
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