• 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
Individual nucleosomes are released by digestion of chromatin with
Individual nucleosomes are released by digestion of chromatin with

... • There are different pathways for the assembly of nucleosomes during replication and independently of replication. • Accessory proteins are required to assist the assembly of nucleosomes. • CAF-1 is an assembly protein that is linked to the PCNA subunit of the ...
DNA Deoxyribose Nucleic Acid
DNA Deoxyribose Nucleic Acid

... answer has to include something changing. The first two options do not include a change, so it’s C or D. The name helicase also tells us that the enzyme is working on the helix, so the answer is C, because it talks about the breaking apart of the helix. ...
Genomics for the Rancher: How Does it Work and What
Genomics for the Rancher: How Does it Work and What

... The sequence of bases in DNA forms the genetic code. A group of three bases (a triplet) is the key signal for the production of a particular amino acid in the cytoplasm of the cell. A sequence of triplets in the DNA molecule may code for a complete protein. The different amino acids, and the order i ...
Competence
Competence

... 2. The phosphate is then transferred to ComA. 3. ComA activates the transcription of many genes ...
Homework Assignment #1
Homework Assignment #1

... specific TAFs interact directly with RNA polymerase I and III and thus help recruit it to DNA. This is not likely to be the case for TFIID since RNA polymerase II can bind without its TAFs being present and it is the other general transcription factors such as TFIIB and IIF that bind directly or ind ...
Procedure - DNA Interactive
Procedure - DNA Interactive

... The bz-2 locus is easily resolved in a short run of only 2-3 centimeters. This means you can double comb most mini-gel boxes with one set of wells at the top of gel and one set in the middle. ...
• Transcription Transcription • Translation Information flow in
• Transcription Transcription • Translation Information flow in

... transcripts ...
transcription
transcription

... Regulation of Gene Expression There are at least 300 different kinds of cells in the human body. Most of them have identical DNA. ...
Question How does DNA control a cell?By controlling Protein
Question How does DNA control a cell?By controlling Protein

... - the Genetic code or genotype. RNA - the message or instructions. Polypeptide - the product for the phenotype. ...
Unity of Life - stephen fleenor
Unity of Life - stephen fleenor

... Warm-Up (3/28) Describe the relationship between DNA and RNA in the synthesis of proteins. Use the following words in your explanation: transcription, translation, nucleus, ribosome. ...
C2984Datasheet-Lot100
C2984Datasheet-Lot100

... the F´ (α-complementation). When β-galactosidase is reconstituted in this manner it can cleave X-gal and results in blue colonies on an X-gal plate. Inserts cloned into the plasmid polylinker disrupt the α-peptide gene and the colonies are white. Recombination plus (recA+): E. coli has a repair syst ...
Recombinant DNA/Evidence of Evolution (On Level)
Recombinant DNA/Evidence of Evolution (On Level)

Document
Document

... Each of the bases in DNA can appear in one of several forms, called tautomers, which are isomers that differ in the positions of their atoms and in the bonds between the atoms. The forms are in equilibrium. The keto form of each base is normally present in DNA whereas the imino and enol forms of the ...
Experiment 2 Plasmid DNA Isolation, Restriction Digestion and Gel
Experiment 2 Plasmid DNA Isolation, Restriction Digestion and Gel

... potassium has an additional effect on the sample. Potassium ions interact with the SDS making the detergent insoluble. The SDS will easily precipitate and can be separated by centrifugation. In doing so the insoluble SDS traps the larger genomic DNA and removes it from the supernatant. This leaves t ...
Biology II (Block III)
Biology II (Block III)

... The model proposed by Watson and Crick explain many of the most important properties of DNA. • The double helix model explains chargaff´s rule of base pairing and how the two strands of DNA are held together. • It also tell us how DNA can function as a carrier of genetic information. Antiparallel st ...
1 PROTOCOLS FOR LIGATION-INDEPENDENT CLONING
1 PROTOCOLS FOR LIGATION-INDEPENDENT CLONING

mnw2yr_lec1_2004
mnw2yr_lec1_2004

... cells of a human body (an exception is, for example, red blood cells which have no nucleus and therefore no DNA) – a total of ~1022 nucleotides! • Many DNA regions code for proteins, and are called genes (1 gene codes for 1 protein in principle) • Human DNA contains ~30,000 expressed genes • Deoxyri ...
Managing people in sport organisations: A strategic human
Managing people in sport organisations: A strategic human

... A specialized form of Southern blotting, called zoo blotting, is used to distinguish coding DNA from noncoding regions. The target DNA includes several samples of genomic DNA from different animals, hence the term “zoo.” The probe is a segment of human DNA that may or may not be from a coding region ...
MB207Jan2010
MB207Jan2010

... • Allow large section of the DNA double helix to move from one chromosome to another • Responsible for the crossing-over of chromosomes during meiosis • Chromosome must synapse (pair) in order for chiasmata to form where crossing-over occurs – DNA synapsis: base pairing between complementary strands ...
Protein Synthesis Role Modeling Activity
Protein Synthesis Role Modeling Activity

... The word “mutation” means different things to different people. For some, it makes them think of scary scenes from their favorite sci-fi movie. For others, it stirs memories of nuclear disasters at Three Mile Island in Pennsylvania or Chernobyl in the former Soviet Union. Most people don’t realize t ...
STUDY GUIDE for Dr. Mohnen`s part of Exam #3
STUDY GUIDE for Dr. Mohnen`s part of Exam #3

... Cis-acting element: DNA sequences that regulate expression of gene located on same DNA molecule Transcription initiation in eukaryotes: TFII: transcription factor for RNA Pol II (TF-D (with TBP),A,B,F (then initiate),E,H TFIIH: opens double helix & phosphorylated CTD of RNA PolII change from initiat ...
Supplementary Material and Methods
Supplementary Material and Methods

... Minneapolis, MM, USA). Each sample was divided into two parts and a cDNA synthesis was ...
8.2 Structure of DNA
8.2 Structure of DNA

... more structural genes that code for all the proteins needed to do a job. – Operons are most common in prokaryotes. – The lac operon was one of the first examples of gene regulation to be discovered. – The lac operon has three genes that code for enzymes that break down lactose. ...
Shedding Light on Nucleic Acids and DNA under - Beilstein
Shedding Light on Nucleic Acids and DNA under - Beilstein

... Light-activatable (‘‘Caged’’) Nucleic Acids – Photochemistry in Living Cells Most of the processes in living organisms are exquisitely spatiotemporally regulated – and this is true at every level of organization. A cell is more than just the sum of its individual (non-interacting) constituents, a ti ...
Slide 1
Slide 1

... structural modelling. ...
< 1 ... 196 197 198 199 200 201 202 203 204 ... 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