• 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
Down syndrome genetics: unravelling a multifactorial disorder
Down syndrome genetics: unravelling a multifactorial disorder

... chromosome 21. A more helpful model for DS research has been provided recently by the Ts65Dn mouse that is trisomic for the telomeric portion of mouse chromosome 16, which is syntenic to a portion of human chromosome 21 (87). These mice survive into adulthood and have learning and behavioural defici ...
Gene silencing: RNA makes RNA makes no
Gene silencing: RNA makes RNA makes no

... gene silencing in plants [9]. It would not, however, explain why base-paired regions of endogenous RNA do not activate post-transcriptional gene silencing. A further uncertainty concerns the nature of the RNA produced by the RNA-dependent RNA polymerase. It is unlikely that the RNA-dependent RNA pol ...
100 Pectin is a complex polysaccharide consisting mainly of
100 Pectin is a complex polysaccharide consisting mainly of

... pectin which are structural polysaccharide found in primary cell wall and middle lamella of fruits and vegetables. Pectolysis is one of the most important processes for plant, as it plays a role in cell elongation and growth as well as fruit ripening. Microbial pectolysis is important in plant patho ...
Myotonic dystrophy DM
Myotonic dystrophy DM

... would be explained by haploinsufficiency of a number of neighboring genes, with expression level and hence disease severity, dependent on repeat length. ...
Pitfalls of primer and probe design and synthesis
Pitfalls of primer and probe design and synthesis

Competition between Transposable Elements
Competition between Transposable Elements

... largely unknown. The first steps of this process are especially problematic: it is unclear whether one or few elements in an initially transposon-free bacterial genome can produce sufficient number of beneficial mutations to be favored by selection. Indeed, bacterial transposable genetic elements ar ...
Patterns of Inheritance Understanding the Chromosome A History of
Patterns of Inheritance Understanding the Chromosome A History of

... Inheritance Strategies ...
Chapter 15 PowerPoint--6 slides per pg
Chapter 15 PowerPoint--6 slides per pg

...  Aneuploidy results from the fertilization of gametes in which nondisjunction occurred  Offspring with this condition have an abnormal number of a particular chromosome  A monosomic zygote has only one copy of a particular chromosome ...
Molecular cloning and characterization of chitinase
Molecular cloning and characterization of chitinase

... and repressed by glucose. The cells seem to produce several different chitinases simultaneously. A gene for chitinase has been cloned from S. plicatus in E. coli (Robbins et al., 1988). However, our understanding of the regulatory mechanisms that control the synthesis and function of the multiple en ...
Whey Protein Concentrate
Whey Protein Concentrate

... wisely? Casein is digested slowly and releases amino acids into the blood gradually, with levels elevated even three hours later. Researchers found that casein did not effect protein synthesis much (anabolism, as in muscle building), but dramatically decreased protein breakdown (catabolism, as in mu ...
timeline
timeline

... of international efforts — a high-quality draft sequence and analysis of the genome of the C57BL/6J mouse strain. The estimated size is 2.5 Gb, smaller than the human genome, with less than 30,000 genes. About 40% of the human and mouse genomes can be directly aligned with each other, and about 80% ...
Discovery of genes in the Pacific oyster (Crassostrea gigas) involved
Discovery of genes in the Pacific oyster (Crassostrea gigas) involved

... rigorous protocol (Ambion) to remove potential genomic DNA carry-over. All samples were evaluated to insure genomic DNA was absent by performing quantitative polymerase chain reaction (qPCR) on DNAsed RNA samples. RNA ...
Lab 7: Conjugation/Transformation
Lab 7: Conjugation/Transformation

... categorized based on their shape, color (if any), colony properties (clonal growth) and metabolic characteristics. The traits we will examine are based on their ability to synthesize most of their own building blocks (such as amino acids, vitamins, and nucleotides) their flexibility in sugar metabol ...
IBC Form - Icahn School of Medicine
IBC Form - Icahn School of Medicine

C. elegans Life Cycle
C. elegans Life Cycle

... Description of genome Life cycle and anatomy Precise patterns of cell lineage throughout development Techniques of genetic and molecular analysis Specification of early embryonic blastoderms Role of programmed cell death Timing of decision during larval development ...
Characterization of head involution defective (hid) as a pro
Characterization of head involution defective (hid) as a pro

... scalaris), a species that has diverged from the Drosophila lineage around150 million years ago. Scuttle flies are so named because they walk in rapid bursts of movement with short pauses in between (Harrison et al., 2003). As compared to D. melanogaster, scuttle flies mature at a slower rate and the ...
TCPS: Section 8. Human Genetic Research
TCPS: Section 8. Human Genetic Research

... The genetics researcher shall seek free and informed consent from the individual and report results to that individual if the individual so desires. Article 8.1 extends the general requirement for free and informed consent of Section 2, to their particular application in genetic research. Because ge ...
Why do more divergent sequences produce smaller non
Why do more divergent sequences produce smaller non

... lower than the corresponding synonymous distance (dS , measured by the number of synonymous substitutions per synonymous site), because the structure and function of a protein imposes constraints on the types of nonsynonymous (amino acid) substitutions that can take place, while synonymous substitut ...
Solid Tumour Section tumors Atlas of Genetics and Cytogenetics
Solid Tumour Section tumors Atlas of Genetics and Cytogenetics

... karyotype have been involved in these rearrangements. The most frequent aberration is t(3;12)(q27-28;q14-15), found in one-fifth of cases with 12q13-15 changes. Other recurrently involved chromosome segments include 1p36, 1p32-34, 2p22-24, 2q35-37, 5q33, 10q22, 11q13, 12p11, 12q24, 13q12-14, and 21q ...
European Journal of Soil Science
European Journal of Soil Science

... obtained from clone libraries and from our TReFID computer program, which employs terminal restriction patterns for bacteria using multiple restriction enzymes. Both approaches indicated that Proteobacteria (αand γ -groups) and Acidobacteria dominated. A comprehensive list of bacteria retrieved from ...
Caenorhabditis elegans chromosome arms are anchored to the
Caenorhabditis elegans chromosome arms are anchored to the

Proteins
Proteins

... The enzymatic activity of H(A16-M) and its cp variants was determined as described.12 Both cpA16M-84 and cpA16M-127 hydrolyse the natural substrate lichenan (Table II), but with reduced activity. At the temperature optimum for catalysis, the enzymatic activity of cpA16M-84 is reduced by a factor of ...
Temporal and Spatial Expression of Homeotic Genes Is Important for
Temporal and Spatial Expression of Homeotic Genes Is Important for

... (Hosoya et al., 1995), and differentially regulates the expression of over 400 genes (Egger et al., 2002). gcm also regulates the expression of genes, such as, reverse polarity (repo) (Halter et al., 1995; Xiong et al., 1994), which encodes a homeodomain protein and is expressed exclusively in almos ...
Molecular and Phylogenetic Characterization of Cytokine Genes
Molecular and Phylogenetic Characterization of Cytokine Genes

... Arthropod-Borne and Infectious Diseases Laboratory, Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA Abstract: Bats (order Chiroptera) represent nearly one fourth of the approximately ...
LECT35 trans1
LECT35 trans1

... Q: So, how does aminoacyl-tRNA synthetase discriminate amino acids and different tRNA species? A: The key lies in the tRNA itself. Besides the anticodon, tRNAs have other bases that set them apart. These bases called “identity elements” are found in the terminal ends (acceptor stem) and internal in ...
< 1 ... 335 336 337 338 339 340 341 342 343 ... 2254 >

Artificial gene synthesis

Artificial gene synthesis is a method in synthetic biology that is used to create artificial genes in the laboratory. Currently based on solid-phase DNA synthesis, it differs from molecular cloning and polymerase chain reaction (PCR) in that the user does not have to begin with preexisting DNA sequences. Therefore, it is possible to make a completely synthetic double-stranded DNA molecule with no apparent limits on either nucleotide sequence or size. The method has been used to generate functional bacterial or yeast chromosomes containing approximately one million base pairs. Recent research also suggests the possibility of creating novel nucleobase pairs in addition to the two base pairs in nature, which could greatly expand the possibility of expanding the genetic code.Synthesis of the first complete gene, a yeast tRNA, was demonstrated by Har Gobind Khorana and coworkers in 1972. Synthesis of the first peptide- and protein-coding genes was performed in the laboratories of Herbert Boyer and Alexander Markham, respectively.Commercial gene synthesis services are now available from numerous companies worldwide, some of which have built their business model around this task. Current gene synthesis approaches are most often based on a combination of organic chemistry and molecular biological techniques and entire genes may be synthesized ""de novo"", without the need for precursor template DNA. Gene synthesis has become an important tool in many fields of recombinant DNA technology including heterologous gene expression, vaccine development, gene therapy and molecular engineering. The synthesis of nucleic acid sequences is often more economical than classical cloning and mutagenesis procedures.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report