• 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
regulation of a bacteriophage t4 late gene, soc, which
regulation of a bacteriophage t4 late gene, soc, which

... T h e position and orientation of the soc gene are unusual for a late gene. soc maps between known early genes (see KUTTER and RUGER 1983), e.g., dam (HATTMAN1983) and mod (HORVITZ 1974). T h e restriction mapping (MACDONALD and MOSIG 1983) and sequence data (Figure 1) together with the Northern blo ...
Modified PDF
Modified PDF

... in vitro. The crystal structure of this domain (see Fig. 1) shows a mainly globular core consisting of 7 alpha-helices, 3 beta sheets, and a remarkable protruding arm of 17 amino acids at the Cterminus (Tucker et al. 1994). This arm contains a hook that fits perfectly into a hydrophobic cleft of a n ...
IBC Form 1A - Purdue University
IBC Form 1A - Purdue University

... the trait naturally, if such acquisition could compromise use of the drug to control disease agents in humans, veterinary medicine or agriculture. III-A (IBC, RAC, NIH) Are you increasing the pathogenicity and/or drug resistance of a pathogen? Experiments involving the cloning of toxin molecules wit ...
Microbial DNA qPCR Assays
Microbial DNA qPCR Assays

... To ensure that Microbial DNA qPCR Assays performed comparably in a complex sample, where there may be up to a thousand different microbial species, each assay was tested using stool, tooth plaque, and sputum samples. For each sample, synthetic template targets were spiked in and the CT was compared ...
Proteinase K, solution
Proteinase K, solution

... (Anson M.M, J. Gen. Physiol., 22 : 79, 1939) ] ...
Microbial DNA qPCR Assays
Microbial DNA qPCR Assays

... To ensure that Microbial DNA qPCR Assays performed comparably in a complex sample, where there may be up to a thousand different microbial species, each assay was tested using stool, tooth plaque, and sputum samples. For each sample, synthetic template targets were spiked in and the CT was compared ...
Functional constraints and frequency of deleterious mutations in
Functional constraints and frequency of deleterious mutations in

... sites of protein-coding genes (6–8). There is a strong, positive correlation between generation time of a species and U (8), and U in long-lived taxa such as hominids is likely to exceed one event per generation (6, 7). However, the contribution of mutations in noncoding DNA to the genomewide delete ...
Plant Telomere Biology
Plant Telomere Biology

... quiescent period. This development was not an answer to a problem, but rather the definition of what was to become the crucial problem for the field. In the early 1970s, after mechanisms of DNA replication had been elucidated, both Alexey Olovnikov (1971, 1973) and Jim Watson (1972) independently de ...
Biology 120 Lab Exam 2 Review Session
Biology 120 Lab Exam 2 Review Session

... _____ S Stage of Mitosis is where chromosomes are duplicated by DNA replication. _____ In a mouse, sperm is produced by mitosis. _____ Phosphodiester bonds are formed between the complementary nitrogenous bases of DNA. _____ In gel electrophoresis, sucrose infused water is used to conduct electricit ...
View as PDF
View as PDF

... In the acquisition phase, foreign DNA is incorporated into the bacterial genome at the CRISPR locus. The CRISPR locus is then transcribed and processed into crRNA during crRNA biogenesis. During interference, Cas9 endonuclease complexed with a crRNA and separate tracrRNA cleaves foreign DNA containi ...
Fusobacterium pseudonecrophorurn Is a Synonym for Fusobacten
Fusobacterium pseudonecrophorurn Is a Synonym for Fusobacten

... 1927 from puerperal infection of women and named Actinomyces pseudonecrophorus (5). Subsequently, it was renamed Sphaerophorus pseudonecrophorus (13) and bovine and ovine strains originally identified as S. necrophorus were examined in the recent description of F. pseudonecrophorum.However, while me ...
Document
Document

... Free DNA ...
Visualization of oligonucleotide probes and point mutations in
Visualization of oligonucleotide probes and point mutations in

... poly(T) linker centered around a (CH2)18 spacer. Each circle sequence was designed to have a minimum level of secondary structure or cross hybridization to other circles or decorator probes. The decorator probes had sequences identical to that of a segment of their cognate circle, and each was label ...
Supplementary Material Legends
Supplementary Material Legends

... border genomic DNA-T-DNA fusion site was known (Suppl. Info. 1). In these cases, it was assumed that the T-DNA insertion had happened without DNA sequence deletion and sequence feature analysis for the “unknown” side was started at the nucleotide directly adjacent to the known genomic DNA-T-DNA fusi ...
Supporting Online Material
Supporting Online Material

... Figure S9. Scheme of crossing for silencing of dUTPase in the dorsal compartment of Drosophila wing imaginal discs. Crossing scheme is shown on panel (A): virgin females of the MS1096 Gal4 enhancer trap line expressing Gal4 preferentially in the dorsal compartment of the wing and carrying UAS-Dicer2 ...
DNA-Catalyzed Covalent Modification of Amino Acid Side Chains in
DNA-Catalyzed Covalent Modification of Amino Acid Side Chains in

... but structural complexity may be insufficient for catalysis, and longer random region lengths, in which sequence space is very sparsely sampled but more complex structures can be accessed.) Then, individual DNA sequences capable of joining the tripeptide moiety of the DNA-anchored tripeptide to the RN ...
BlastLecture8
BlastLecture8

... Rerun search with two diff subs matrix 2 x 3 for six searches If top N hits all same family/domain then XXX this region and resubmit 6. LOOK at the results; esp strange ones ...
Document
Document

AP LAB # 3: MITOSIS AND MEIOSIS
AP LAB # 3: MITOSIS AND MEIOSIS

... species will possess 2 copies of each chromosome. This is because it receives one chromosome A and one chromosome B from each parent. Thus, it would have chromosomes A1A2 and B1B2. An organism with 2 sets of chromomes (2n) is said to be diploid in chromosome number. The chromosomes of a pair are hom ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

... 13. Describe the importance of flavones and flavanoids. 14. How is the presence of ES complexes determined? Explain. 15. Explain the different types of soil. 16. How is N-terminal of an amino acid determined by dansyl chloride method? 17. What is competitive inhibition? Explain with an example. 18. ...
Structure-Based Prediction of DNA Target Sites by Regulatory Proteins
Structure-Based Prediction of DNA Target Sites by Regulatory Proteins

... role in controlling complex spatial and temporal patterns of gene expression in higher organism, by recognizing multiple DNA sequences and regulating multiple target genes. Increasing amounts of structural data on the protein–DNA complex provides clues for the mechanism of target recognition by regu ...
2012_4 The-new-Federal-anti-counterfeiting-mandate-for-military-electronics
2012_4 The-new-Federal-anti-counterfeiting-mandate-for-military-electronics

... nonetheless force buyers to go to independents, including to distributors whose reputation is unknown. Section 818 does directly address this as we have seen, but in order to work, any solution must be industry-wide and this only intensifies the pressure on the OCMs to be participants. All this is t ...
περισσότερες πληροφορίες
περισσότερες πληροφορίες

... proteins capable of cutting DNA. • They showed that the E. coli bacterium is equipped with an enzymatic system capable of recognizing and destroying exogenous DNA and called this group of proteins “restriction enzymes”. • They also showed that the activity of these enzymes is controlled: each enzyme ...
Slide 1
Slide 1

... A person wishes to raise guinea pigs with black fur, the dominant trait. She selects a male black guinea pig and performs a test cross with a female that has white fur, the recessive trait. What is the black guinea pig’s genotype if any of the offspring are white? ...
PDF
PDF

... in vitrocon- uracil DNA glycosylasehas been purified to homogeneity (8). CNBr cleavage of the protein synthesized firms the positions of the methionines deduced from The enzyme is a single polypeptide monomer of about 25 kDa the DNA sequence. The levels of ung gene expression molecular mass and cont ...
< 1 ... 53 54 55 56 57 58 59 60 61 ... 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 © 2025
  • DMCA
  • Privacy
  • Terms
  • Report