• 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
Microbial Genetics (Kroening)
Microbial Genetics (Kroening)

... Course Objectives: Understanding microbial genes, genomes, and gene regulation is central to understanding the biology of microorganisms. Since the long-ago discoveries that microorganisms have genes, the structure of DNA, and the role of DNA in heredity (1940’s and 50’s), microbes have been used ex ...
CHAPTER 1 Genetics: An Introduction
CHAPTER 1 Genetics: An Introduction

... Classic and Modern Genetics • The terms of “classic” and “modern genetics” are used to separate the scientific research that has been done in Genetics since its beginnings. • The abbreviated timeline of events (or the expansive timeline in your textbook) shows that generally classic genetics involv ...
Microarray Protocol
Microarray Protocol

... harvest pool tracking form (see example on page 6) b) Place a conscious, non-anesthetized rat into a plastic restraint cone and decapitate, with the head falling directly into liquid nitrogen. Drain blood until muscle activity ceases and then open the rat at the midline. c) Remove and mince heart, l ...
ap nucleic acids, proteins and enzymes
ap nucleic acids, proteins and enzymes

... Proteins interact with other molecules. R groups on the surface may form weak interactions (e.g., hydrogen bonds) with groups on the surface of another molecule. This can change the tertiary structure and thus the shape of the protein. Protein structure can also be modified by covalent bonding of a ...
PoL2e Ch03 Lecture-Nucleic Acids, Proteins, and Enzymes
PoL2e Ch03 Lecture-Nucleic Acids, Proteins, and Enzymes

... Proteins interact with other molecules. R groups on the surface may form weak interactions (e.g., hydrogen bonds) with groups on the surface of another molecule. This can change the tertiary structure and thus the shape of the protein. Protein structure can also be modified by covalent bonding of a ...
Folate and DNA methylation during in utero development and aging
Folate and DNA methylation during in utero development and aging

... dinucleotides occur at low abundance throughout the human DNA genome and tend to concentrate in regions known as CpG islands found in the promoter regions of genes. A CpG island is a region of DNA with more than 200 bp, a high G-C content and an observed/expected ratio of CpGs greater than 0.6 [2]. ...
Alu-TPA PCR Kit (#8) Tech Service Training August ‘99
Alu-TPA PCR Kit (#8) Tech Service Training August ‘99

... • Segments of DNA which have the ability to move to or be copied to other regions of the genome Replicate are thought Element ...
Balancing Redox Cofactor Generation and ATP Synthesis: Key
Balancing Redox Cofactor Generation and ATP Synthesis: Key

... purified RNA was determined by real-time PCR (see below) using 200 ng of RNA as template together with the 5'-GAPDH primer set. Samples with residual chromosomal DNA were treated again with DNase I. To retain a sufficiently high concentration of RNA after successive rounds of DNase I treatment, the ...
Description
Description

... copies of a particular sequence of DNA can be produced within a few hours. It is like Xerox machine for gene copying.  This is an amplification reaction in which a small amount of a DNA template is amplified to provide enough copies (up to 100,000 fold) to ...
methodology for high-quality RNA extraction from poultry whole
methodology for high-quality RNA extraction from poultry whole

... used for blood collection and preparation of samples may cause changes in gene expression ex vivo. In this study, adequate blood volumes (2 ml) were successfully drawn from the cutaneous ulnar and medial metatarsal vein with minimal haematoma formation. Coagulation of blood samples may occur if an a ...
Slide 1
Slide 1

... recombinant protein was improved in order that it remained active in the presence of Bleach. Bleach caused the oxidation of a methionine residue (position 22) & the enzyme lost 90% of its activity. By replacing this amino acid with alanine, the enzyme was no longer sensitive to oxidation & found bes ...
PowerPoint-Präsentation
PowerPoint-Präsentation

... Protein level is constant, but the fluctuations are increased. (noise from mRNA level determines the protein concentration noise) ...
Pyruvate-Phosphate Dikinase of Oxymonads and
Pyruvate-Phosphate Dikinase of Oxymonads and

... eukaryotes. For the most part this is probably due to lack of resolution in the phylogeny, but there may also be a case for some ancient duplication events and the incongruent distribution of taxa in some of the well-supported nodes suggests that at least one event of lateral gene transfer probably ...
Revisiting the role of yeast Sfp1 in ribosome biogenesis and cell
Revisiting the role of yeast Sfp1 in ribosome biogenesis and cell

... Cultures were fed with a defined mineral medium that limited growth by glucose or ethanol. The medium composition was based on that used by Verduyn et al. (1992). The concentration of substrate carbon in the reservoir medium was 250 mmol C l21 for ethanol-limited cultures and 830 mmol C l21 for gluc ...
Leukaemia Section t(5;14)(q35;q32) Atlas of Genetics and Cytogenetics in Oncology and Haematology
Leukaemia Section t(5;14)(q35;q32) Atlas of Genetics and Cytogenetics in Oncology and Haematology

... Fusion protein ...
P.abyssi PDF version
P.abyssi PDF version

... fit into any COG category, eventually leaving approximately one-third (580) orphan sequences. Overall analysis results are summarized in Table 1. The global distribution of genes within different functional categories did not change significantly, the most salient feature remaining the net increase ...
How does Information get out of the Nucleus
How does Information get out of the Nucleus

... After this the process repeats until one of the three stop codons (UAA, UAG, or UGA) is reached. No tRNA has an anticodon to match these, and at this point translation stops. The mRNA is released (and can be translated again), and the new protein molecule is released. The protein molecule formed in ...
Transposable Genetic Elements - James A. Shapiro
Transposable Genetic Elements - James A. Shapiro

... many eggs or sperms, which can poten­ tially interact with sperms or eggs from many other individuals, so that there is a vast opportunity for the generation of genetic diversity within the population. In the absence of intentional and extend­ ed inbreeding the possibility that any two plants or ani ...
Mycoplasma genitalium
Mycoplasma genitalium

... ASM ALIGN, a program that links contain the smallest genome for a self-replicatrigs on the basis of information derived ing organism (580 kb) and represents an from forward and reverse sequencing reacimportant system for exploring a minimal functional gene set (2). Mycoplasma genitions from the same ...
Genomics Core, Dr. Yuannan Xia
Genomics Core, Dr. Yuannan Xia

... Arabidopsis mitochondrial genome (S. Mackenzie) Small RNA sequencing Several UNL faculty have expressed strong interest. (Y.Bin, H. Cerutti, J. Mower, J. Alfano) ...
PCR: Polymerase Chain Reaction
PCR: Polymerase Chain Reaction

... something found in such small amounts that without PCR it would be undetectable. ...
Fuel Metabolism PART 1: Structure and Function of Protein
Fuel Metabolism PART 1: Structure and Function of Protein

... 5-D. In the TCA cycle, 3 NADHs are produced (3 x 53 = 159 kcal), 1 FADH2 (41 kcal), and 1 GTP (8 kcal). The percentage of the total energy available from oxidation of acetate that is transferred to these compounds is, therefore, 208/243 kcal or 86%. 6-C. About 12 ATP are produced by the TCA cycle (1 ...
DNA Replication
DNA Replication

... Repair polymerase: fills “gap” after primer is removed… Ligase: closes “nicks” in DNA Topoisomerase I: creates ss nicks ahead of replication to allow unwinding… Topoisomerase II: creates ds nicks to pass one ds DNA through another… ...
Analysis of Cell Ageing
Analysis of Cell Ageing

... Q4 – The mutated gene is the same length as the normal gene so PCR/electrophoresis would not differentiate and would require gene sequencing which is expensive and takes time. There are also multiple mutations to test for. The biochemical screen is cheaper and faster and very accurate. Q5 – Tandem ...
Molecular Biochemistry (Bioc432) student part 2
Molecular Biochemistry (Bioc432) student part 2

... 1: Initiation and Unwinding Initiation and Unwinding •DNA replication occurs when the complementary strands of DNA break apart and unwind. •This is accomplished with the help of enzymes called helicases. •Each half will then be the template for a new, complementary strand. •Because the newly unwound ...
< 1 ... 62 63 64 65 66 67 68 69 70 ... 342 >

Transcriptional regulation

In molecular biology and genetics, transcriptional regulation is the means by which a cell regulates the conversion of DNA to RNA (transcription), thereby orchestrating gene activity. A single gene can be regulated in a range of ways, from altering the number of copies of RNA that are transcribed, to the temporal control of when the gene is transcribed. This control allows the cell or organism to respond to a variety of intra- and extracellular signals and thus mount a response. Some examples of this include producing the mRNA that encode enzymes to adapt to a change in a food source, producing the gene products involved in cell cycle specific activities, and producing the gene products responsible for cellular differentiation in higher eukaryotes.The regulation of transcription is a vital process in all living organisms. It is orchestrated by transcription factors and other proteins working in concert to finely tune the amount of RNA being produced through a variety of mechanisms. Prokaryotic organisms and eukaryotic organisms have very different strategies of accomplishing control over transcription, but some important features remain conserved between the two. Most importantly is the idea of combinatorial control, which is that any given gene is likely controlled by a specific combination of factors to control transcription. In a hypothetical example, the factors A and B might regulate a distinct set of genes from the combination of factors A and C. This combinatorial nature extends to complexes of far more than two proteins, and allows a very small subset (less than 10%) of the genome to control the transcriptional program of the entire cell.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report