• 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
- University of Bath Opus
- University of Bath Opus

... and Ward, 2005) and Drosophila(Gnad and Parsch, 2006) genomes demonstrates an increased number of male-biased genes through duplication. DNA sequences with no coding function could also provide a source for sex-biased expression gene generation. Levine et al. (2006) performed a whole-genome study of ...
The Drosophila Gene Disruption Project: Progress
The Drosophila Gene Disruption Project: Progress

... the basis of the best judgment of an expert annotator, lines can be retained for several reasons. Of highest priority are lines likely to disrupt any gene lacking a current GDP insertion. Because the annotated 59 end of many gene models may be truncated relative to the true 59 end, insertions locate ...
Chap 2 - Genetics
Chap 2 - Genetics

... beneficial mutation to arise in the population. Only when it gets transmitted does selection have a chance of promoting its spread in the population. Segregation Genes are found on chromosomes. The first random event in sexual reproduction occurs during meiosis when homologous pairs of chromosomes l ...
Syntrophic linkage between predatory Carpediemonas and
Syntrophic linkage between predatory Carpediemonas and

... Most anoxic environments are populated by small (o10 μm) heterotrophic eukaryotes that prey on different microbial community members. How predatory eukaryotes engage in beneficial interactions with other microbes has rarely been investigated so far. Here, we studied an example of such an interaction ...
Genetic Diseases (cont.)
Genetic Diseases (cont.)

... are different from each other. ...
Harnessing gene expression to identify the genetic basis of drug
Harnessing gene expression to identify the genetic basis of drug

... Box 1 (A) Growth in the presence of a subset of drugs is represented by the heat map on the left (blue corresponds to low growth yield and yellow to high growth yield). Each row represents the data for a single drug (SMP10 is 1,9-pyrazoloanthone, DFI is diphenyliodonium and SK&F is SK&F 96365) and e ...
Lac A
Lac A

... Zigote healthy carrier: normal phenotype ...
Chromatin-Remodeling and Memory Factors
Chromatin-Remodeling and Memory Factors

... expression are crucial for cell differentiation and development. Over the past few years, it has become apparent that epigenetic control of transcription is mediated through specific states of the chromatin structure. Therefore, changes in the chromatin structure associated with activation and silen ...
Lecture 35 – PDF
Lecture 35 – PDF

... chromosomal polymorphisms within species and chromosomal differences between species indicates that not all major chromosomal alterations are not lost at inception. c) What must happen for the in sequence to increase in frequency to the point where the population becomes polymorphic for the two sequ ...
genetics of susceptibility to infectious diseases: tuberculosis and
genetics of susceptibility to infectious diseases: tuberculosis and

... VDR. Variations in the vitamin D receptor gene were analyzed in the same Gambian population that was enrolled to demonstrate the NRAMP1 association with tuberculosis. Homozygous patients for a polymorphism at codon 352 (genotype tt) were significantly underrepresented among those with tuberculosis ( ...
Solid Tumour Section Nervous system: Medulloblastoma Atlas of Genetics and Cytogenetics
Solid Tumour Section Nervous system: Medulloblastoma Atlas of Genetics and Cytogenetics

... histopathology and differentiation. Virchows Arch A Pathol Anat Histopathol. 1991;418(3):207-14 ...
Anatomy and Physiology Genetic Unit
Anatomy and Physiology Genetic Unit

... that step illustrates is the process of gametogenesis (the production of sex cells, egg & sperm).  Gametogenesis is a cell division thing (also called meiosis) that divides an organism's chromosome number in half.  For example, in humans, body cells have 46 chromosomes a piece. However, when sperm ...
Cloning and Genetic Analysis of Six Pyrroloquinoline
Cloning and Genetic Analysis of Six Pyrroloquinoline

... Duine, 1988). PQQ biosynthesis mutants were first reported in A. calcoaceticus as being unable to oxidize glucose to gluconate (Goosen et al., 1987). These mutants were used for cloning four genes involved in PQQ biosynthesis. DNA sequence analysis failed to give clues to the nature of putative bios ...
5.1.2 Meiosis and Variation
5.1.2 Meiosis and Variation

... F1 offspring, all of which were white, interbred to give an F2 generation. The F2 generation included both white and pigmented birds. The F2 birds were divided into ten groups, each with slightly different percentages of white and pigmented birds. Each bird was examined at intervals to assess any da ...
Inheritance of Nuclear DNA Markers in Gynogenetic Haploid Pink
Inheritance of Nuclear DNA Markers in Gynogenetic Haploid Pink

... tetrasomic inheritance observed in males apparently results from a two-stage pattern of pairing during male meiosis in which homologous chromosomes pair first followed by homeologous pairing. Disjunction of paired chromosomes occurs so that homologs segregate at the first meiotic division in males. ...
Drosophila melanogaster
Drosophila melanogaster

... Selectively breeding of plants and animals to produce more useful hybrids had been done many years ago by farmers and herders. However, there was no accuracy in results because they did not know the concept regarding inheritance. Information about genetic mechanisms was gathered through laboratory b ...
Exploitation of genes affecting meiotic non
Exploitation of genes affecting meiotic non

... and crossing over, recombination and disjunction of homologous chromosomes, and cytokinesis. Together with the unique circumstance of a single round of DNA replication combined with two successive nuclear divisions, it leads to chromosome reduction, accurate chromosome transmission and genetic recom ...
2q32 deletions and microdeletions FTNP
2q32 deletions and microdeletions FTNP

... members of each pair of chromosomes normally line up together and then break and rejoin to create new chromosomes. These new chromosomes contain different combinations of the genes passed down by the grandparents to the parents of the child. It is believed that after the chromosomes break, the rejoi ...
Principles of Inheritance: Mendel`s Laws and Genetic
Principles of Inheritance: Mendel`s Laws and Genetic

... Mendel’s second law concerns independent inheritance of different traits. We will not examine these experiments in great detail; they are fundamentally not different from the first set of experiments, although more complicated because of the large number of possible outcomes that can be observed whe ...
The Effect of a Coat Colour-Associated Genes Polymorphism on
The Effect of a Coat Colour-Associated Genes Polymorphism on

... et al., 2005), having an impact on economic effects of animal breeding. The aim of this review is to show the pleiotropic effects of coat colour genes on animal health. Coat colour genes associated with the health state of animals Coat colour is determined during embryonic growth. Melanins (eumelani ...
PopGen2: Linkage Disequilibrium
PopGen2: Linkage Disequilibrium

... It is easy to see that alleles of different genes might not be in random association and such cases are said to be in a state of GAMETEIC PHASE DISEQUILIBRIUM. The term LINKAGE DISEQUILIBRIUM or LD is used interchangeably with gametic phase disequilibrium. Note that other factors can make the attain ...
Considerations for Analyzing Targeted NGS Data – HLA
Considerations for Analyzing Targeted NGS Data – HLA

...  Lots of similar genes and lots of very similar pseudegenes.  Duplicated segments can be more similar to each other within an individual than they are similar to the corresponding segments of the reference genome. ...
The evolutionary mechanics of bacterial protein toxins
The evolutionary mechanics of bacterial protein toxins

...  Phylogenetics is the study of evolutionary relationships between ...
14-1, 2 - greinerudsd
14-1, 2 - greinerudsd

... PEDIGREES  another way to study inheritance • What do you think the F1 generation (line II) # 2 and #5 offspring represent? • Can you draw the Punnett Square for the Parent generation? (I) ...
Mendel Discovers “Genes” 9-1
Mendel Discovers “Genes” 9-1

... • Explain the principle of dominance • Describe what happens during segregation ...
< 1 ... 96 97 98 99 100 101 102 103 104 ... 779 >

Genomic imprinting

Genomic imprinting is the epigenetic phenomenon by which certain genes are expressed in a parent-of-origin-specific manner. If the allele inherited from the father is imprinted, it is thereby silenced, and only the allele from the mother is expressed. If the allele from the mother is imprinted, then only the allele from the father is expressed. Forms of genomic imprinting have been demonstrated in fungi, plants and animals. Genomic imprinting is a fairly rare phenomenon in mammals; most genes are not imprinted.In insects, imprinting affects entire chromosomes. In some insects the entire paternal genome is silenced in male offspring, and thus is involved in sex determination. The imprinting produces effects similar to the mechanisms in other insects that eliminate paternally inherited chromosomes in male offspring, including arrhenotoky.Genomic imprinting is an inheritance process independent of the classical Mendelian inheritance. It is an epigenetic process that involves DNA methylation and histone methylation without altering the genetic sequence. These epigenetic marks are established (""imprinted"") in the germline (sperm or egg cells) of the parents and are maintained through mitotic cell divisions in the somatic cells of an organism.Appropriate imprinting of certain genes is important for normal development. Human diseases involving genomic imprinting include Angelman syndrome and Prader–Willi syndrome.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report