• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
The iGEM Series
The iGEM Series

... researchers because they can be used to generate virtually any type of specialized cell in the human body. The extraction process destroys the embryo, which raises a variety of ethical ...
6.2 Recombinant DNA Technology
6.2 Recombinant DNA Technology

Inheritence Lecture
Inheritence Lecture

... open and, in this case, metabolizing system. Many chemical reactions are going on inside the cell, and molecules are coming in from the outer environment--O2, CO2, metals, etc. The organism's system is parsimonious; many of the chemicals are recycled multiple times in an organism's lifetime (CO2, fo ...
PPT2
PPT2

... Supercoils refer to the DNA structure in which double-stranded circular DNA twists around each other. Supercoiled DNA contrasts relaxed DNA; ...
Worksheet 6 - Iowa State University
Worksheet 6 - Iowa State University

... 1060 Hixson-Lied Student Success Center  515-294-6624  [email protected]  http://www.si.iastate.edu ...
What is a pedigree? - River Mill Academy
What is a pedigree? - River Mill Academy

... inserted into host Attach DNA fragment to a vehicle (vector) Transfer the vector to the host= Transgenic organisms ...
Cells, Chromosomes, Genes
Cells, Chromosomes, Genes

... National Research Council Report (NRC II). “The product rule requires an assumption of within (Hardy-Weinberg or HW) and between (linkage equilibrium or LE) locus independence, which cannot be exactly true.” ...
CHAPTER18-20test
CHAPTER18-20test

... 1. The function of reverse transcriptase in retroviruses is to a. hydrolyze the host cell’s DNA b. use viral RNA as a template for DNA synthesis c. convert host cell RNA into viral DNA d. translate viral RNA into proteins e. use viral RNA as a template for making complementary RNA strands 2. Viruses ...
DNA microarray - Creighton Chemistry Webserver
DNA microarray - Creighton Chemistry Webserver

... of genes DNA segments from known genes (up to hundreds of bp long) are amplified by PCR and placed on a solid surface using robotic devices that accurately deposit nanoliter amounts of DNA solution Thousands of such spots are deposited in a pre-designed array on a surface area of just a ...
ASSIGNMENT – 1
ASSIGNMENT – 1

... 9. a) State whether Trisomy-21 is a case of autosomal aneuploidy or sex chromosome aneuploidy ? What results in this condition? ...
Chapter 17 Nucleotides, Nucleic Acids, and Heredity
Chapter 17 Nucleotides, Nucleic Acids, and Heredity

protein synthesis
protein synthesis

... mRNA READS: CAG UUC GUU CUA AUG Translation occurs ...
to - Stud Game Breeders
to - Stud Game Breeders

... • Mitochondrial DNA and non-coding nuclear DNA • NOT coding nuclear DNA because it is under evolutionary and environmental constraints ¿What is the historical origin of my specific animal? • Mitochondrial DNA and non-coding nuclear DNA • NOT coding nuclear DNA because it is under evolutionary and en ...
Table 2A. Summary of Genetics Activities Activity 1: Mitosis and
Table 2A. Summary of Genetics Activities Activity 1: Mitosis and

... Activity 5: DNA Fingerprinting Summary of DNA Fingerprinting…What is DNA fingerprinting? How can DNA fingerprinting be useful in finding an answer to the viewer question? ...
The Tools of Molecular Biology How do scientists make changes to
The Tools of Molecular Biology How do scientists make changes to

... Cutting DNA Most DNA molecules are too large to be analyzed, so biologists cut them into smaller fragments using restriction enzymes. Which type of molecule is an enzyme? ...
2013 Gen Tech Part 2
2013 Gen Tech Part 2

... Cutting DNA Most DNA molecules are too large to be analyzed, so biologists cut them into smaller fragments using restriction enzymes. Which type of molecule is an enzyme? ...
DNA TECHNOLOGY
DNA TECHNOLOGY

DISCUSSION QUESTIONS KEY Exercise 16: DNA Fingerprinting
DISCUSSION QUESTIONS KEY Exercise 16: DNA Fingerprinting

... single stranded ends called sticky ends. Why are sticky ends called sticky? The single stranded ends are sticky because they will recombine with complementary single strands of DNA cut by the same restriction enzyme. The base pairs of the two complementary single strands will be attracted to one ano ...
PCR amplifies any target DNA sequence. (N)
PCR amplifies any target DNA sequence. (N)

... DNA methods summary 1. Restriction enzymes cut at specific DNA sites. (N) 2. Vectors allow genes to be “cloned” and proteins “expressed”. (N) 3. Gel electrophoresis separates DNA on the basis of size. 4. DNAs can be synthesized (up to ~100 bases commercially). (N) 5. PCR amplifies any target DNA se ...
11/11/15 - cloudfront.net
11/11/15 - cloudfront.net

... Keep your answers covered If you need to make up a quiz due to an absence… come see me Tues or Thurs during PLC Flip it over when you are finished and hang on to it ...
Something`s Fishy
Something`s Fishy

... guanine, and cytosine. This sequence of A, T, G, and C is unique to each individual. Restriction enzymes cut DNA. Each restriction enzyme recognizes a specific group of “target” base pairs and makes a cut within this area. The resulting fragments are called restriction fragment length polymorphisms ...
The Cell Cycle
The Cell Cycle

... Transcription includes: initiation, elongation, ...
Microbiology
Microbiology

... the use of competence factors (CF). • some Gram negative organisms are always competent or they become competent when starved. ...
BACTERIAL GENETICS CH. 6,7,8
BACTERIAL GENETICS CH. 6,7,8

... A. Sequence of nitrogen base pairs = genetic code B. Language of DNA - DNAese 1. Symbols (alphabet) in DNA a. A = T b. T = A c. C  G d. G  C 2. Form three letter words - triplets 3. Each triplet codes for one amino acid 4. 64 triplets 5. 20 amino acids form proteins C. Gene - genetic code for one ...
Chapter 9 Biotechnology and Recombinant DNA Introduction to
Chapter 9 Biotechnology and Recombinant DNA Introduction to

... ƒ ____________________ are sequenced, and pieced together by computer ƒ Gaps are then filled in ƒ Relatively _________________, but ________________ o Small genomes easy to sequence nowadays • Bioinformatics – science of understanding _____________________________________ o Abundance of gene informa ...
< 1 ... 330 331 332 333 334 335 336 337 338 ... 492 >

DNA supercoil



DNA supercoiling refers to the over- or under-winding of a DNA strand, and is an expression of the strain on that strand. Supercoiling is important in a number of biological processes, such as compacting DNA. Additionally, certain enzymes such as topoisomerases are able to change DNA topology to facilitate functions such as DNA replication or transcription. Mathematical expressions are used to describe supercoiling by comparing different coiled states to relaxed B-form DNA.As a general rule, the DNA of most organisms is negatively supercoiled.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report