• 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 nitrogen metabolism in gram
Regulation of nitrogen metabolism in gram

... TnrA/GlnR site upstream of orthologous genes in at least two genomes. Another 11 operons lacked the conserved TnrA-binding site, but their products were involved in nitrogen assimilation (Fig. 3). In all genomes analyzed, the conserved TnrAbinding site was observed upstream of the nrgAB operon. In B ...
Expression analysis of Arc in mouse brain Theresa Köhler
Expression analysis of Arc in mouse brain Theresa Köhler

... Arc, an immediate early gene, expressed in the brain of mice encodes the activity regulated cytoskeletal-associated protein (ARC) that is found on dendrites of neurons. It regulates cell development and plays an important role in neuronal plasticity and formation of long-term memory. Arc is induced ...
Cluster Analysis in DNA Microarray Experiments
Cluster Analysis in DNA Microarray Experiments

... Cluster analysis Clustering is in some sense a more difficult problem than classification. In general, all the issues that must be addressed for classification must also be addressed for clustering. In addition, with clustering, • there is no learning set of labeled observations; • the number of groups ...
Williams syndrome deficits in visual spatial Chromosome 7q11.23
Williams syndrome deficits in visual spatial Chromosome 7q11.23

... as within normal limits, but no volumetric or statistical analyses were performed. She had no documented history of hypercalcemia, hyperacusis, or joint problems. After graduating from Universal Junior High School, she worked at a packaging company and was hoping to marry in the future. Case 2 is a ...
Maimbo, M., Ohnishi, K., Hikichi, Y., Yoshioka, H. and Kiba, A.
Maimbo, M., Ohnishi, K., Hikichi, Y., Yoshioka, H. and Kiba, A.

... vector-mediated virus-induced gene silencing was performed in Nicotiana benthamiana. We previously reported that RsRGA6, encoding a small heat shock protein, was found to be essential for basic defense against R. solanacearum (Maimbo et al., 2007). In this study, we focused on clone RsRGA4, which en ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)

... spectrum of the genetic causes for cleft lip and palate. Although the gene identification process for orofacial clefting In humans is in the early stages, the pace is rapidly accelerating. Recently several genes have been identified. Ongoing human genome –wide linkage studies have identified regions ...
Forkhead Transcription Factors: Key Players in Development and
Forkhead Transcription Factors: Key Players in Development and

... recent duplication of the entire locus, transfer of one copy to a different chromosome, and additional sequence divergence then gave rise to the present four genes. The last duplication apparently took place after the separation of protostomes and deuterostomes; in Drosophila, there is just one homo ...
A Conserved Molecular Framework for Compound Leaf Development
A Conserved Molecular Framework for Compound Leaf Development

... In A. caerula, AcNAM and AcCUC3 are expressed at the boundaries between leaf primordia (lp) and the meristem (m) during the formation of the rosette leaves (A, B) and after bolting (C). In the floral meristem (fm), AcNAM marks the boundary of the numerous stamen primordia (stp, D). In the vegetative ...
Phylogenetic ANOVA: The Expression Variance and
Phylogenetic ANOVA: The Expression Variance and

... individuals in a population or a species. This expression level variance is caused by genetic ...
Gene Expression in Prokaryotes
Gene Expression in Prokaryotes

... Post-Translational modifications ...
unit-2 genetics of prokaryotes and eukaryotic
unit-2 genetics of prokaryotes and eukaryotic

... technique is called chromosome mapping. If linkage groups are already established in an organism, trisomics can be effectively used for assigning these linkage groups to specific chromosomes. Since the segregation ratio for genes located on the chromosome involved in trisomic condition differs from ...
Cluster Analysis in DNA Microarray Experiments
Cluster Analysis in DNA Microarray Experiments

... Cluster analysis Clustering is in some sense a more difficult problem than classification. In general, all the issues that must be addressed for classification must also be addressed for clustering. In addition, with clustering, • there is no learning set of labeled observations; • the number of gr ...
Compound leaves: equal to the sum of their parts?
Compound leaves: equal to the sum of their parts?

... plants or in naturally occurring tomato mutants results in leaves with increased numbers of leaflets (Hareven et al., 1996; Chen et al., 1997; Parnis et al., 1997). It has therefore been concluded that KNOX1 genes are involved in regulating compound leaf development by establishing a more indetermin ...
Generating Marker-Free Transgenic Wheat Using Minimal Gene
Generating Marker-Free Transgenic Wheat Using Minimal Gene

... bar selection and cre-recombinase genes were eliminated from T0 and T1 transgenic lines with 44% and 51% efficiency. This approach provides a new, reasonably effective technique to produce selection gene-free transgenic wheat lines either immediately after tissue culture, or from the subsequent tran ...
Sexual Reproduction and Meiosis
Sexual Reproduction and Meiosis

... •The reproductive process that involves two parents who combine their genetic information to produce offspring that is not identical to either parent. •What are some examples of organisms that are able to reproduce this way? ...
Genetic Approaches to Studying Genome Function
Genetic Approaches to Studying Genome Function

... the other, that mutation is said to be epistatic over the other. Thus, if the AB double mutant looks like the A mutant alone, mutation A is said to be epistatic over mutation B; conversely, if the AB double mutant looks like the B mutant alone, mutation B is said to be epistatic over mutation A. Exa ...
IOSR Journal of Agriculture and Veterinary Science (IOSR-JAVS)
IOSR Journal of Agriculture and Veterinary Science (IOSR-JAVS)

... Upon detailed bacteriological investigation, 56(77.78%) isolates were tentatively identified as motile A. sobria which can be differentiate from other Aeromonas sp. as it can produce gas from glucose but does not hydrolyze esculin [12], whereas, other Aeromonas sp. produce gas from glucose and hydro ...
Mef2 gene expression marks the cardiac and skeletal muscle
Mef2 gene expression marks the cardiac and skeletal muscle

... somites and fetal muscle is distinct from that of MEF2A, MEF2D and the myogenic bHLH regulatory genes, suggesting that it may represent a distinct myogenic cell type. Neural crest cells also express high levels of MEF2 mRNAs between days 8.5 and 10.5 of gestation. After day 12.5 p.c., MEF2 transcrip ...
Evolution of codon usage bias in Drosophila
Evolution of codon usage bias in Drosophila

... of codon usage bias in Drosophila and make the following points: (i) Drosophila genes are as biased or more biased than those in microorganisms. (ii) The level of bias of genes and even the particular pattern of codon bias can remain phylogenetically invariant for very long periods of evolution. (ii ...
Ensembl Introduction
Ensembl Introduction

... • Pilot project completed in 2007: 1% of human genome • Discovered promoter elements are on either side of the transcription start site ...
Gene conversion and purifying selection shape nucleotide variation
Gene conversion and purifying selection shape nucleotide variation

... strands were sequenced. When we found nucleotide differences in two or more individuals at the same site, we sequenced both strands of at least one of the samples to confirm the variation. When we found a different nucleotide in only one sample, i.e. as a singleton among the samples, we repeated the ...
Flintstones Sex Linked - Kenwood Academy Freshmen Biology
Flintstones Sex Linked - Kenwood Academy Freshmen Biology

... now be revealed! Name: _____________________________________________ Date: ___________________ Period: ________ ...
Ends-out, or replacement, gene targeting in Drosophila
Ends-out, or replacement, gene targeting in Drosophila

... joined the two ends. We also estimated the approximate proportion of donor with a DSB at each site. A cut at the left site will generate a 6.3-kb fragment; a cut at the right site will generate a 1.7-kb fragment. At the peak of cutting, about 4 h after heat shock, ⬇30% of the donor exhibited a DSB a ...
Novel cryptic chromosomal rearrangements in childhood acute
Novel cryptic chromosomal rearrangements in childhood acute

... as 22% of T-ALL patients. HOX11L2, an orphan homeobox gene located close to the chromosome 5 breakpoints was found to be transcriptionally activated as a result of this translocation.6 The t(7;11) also involves distal chromosome arm ends and cannot be detected upon banding analysis only, and thus ca ...
PDF
PDF

... process that is strongly reminiscent of gastrulation contradicts expectations based upon the classical distinction between diploblastic and triploblastic animals and indicates that snail expression was already associated with creation of a new internal tissue layer in the common ancestor of the two ...
< 1 ... 57 58 59 60 61 62 63 64 65 ... 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