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Title: Gene Interactions in Corn. Introduction. The phenotype of an
Title: Gene Interactions in Corn. Introduction. The phenotype of an

... genotype of an organism, and an understanding of how the various genes and alleles interact, we can predict the phenotype of the progeny of a particular cross. For example, given that flower colour in pea plants is controlled by a single gene, and that the allele that gives rise to purple flowers is ...
Epigenetic Inactivation of Chalcone Synthase-A
Epigenetic Inactivation of Chalcone Synthase-A

... revertant; the mechanism of the reversion is unknown. The CHS-A mRNA levels differ greatly in the two lines, as demonstrated by RNA gel-blot analysis and reverse transcription–PCR (RT–PCR) (Metzlaff et al. 1997). The levels of CHS-A mRNA from both the CHS-A transgene and the endogenous CHS-A gene (C ...
Gene Section MSH6 (mutS homolog 6 (E. Coli)) in Oncology and Haematology
Gene Section MSH6 (mutS homolog 6 (E. Coli)) in Oncology and Haematology

Chapter 12: Mechanisms and Regulation of Transcription I
Chapter 12: Mechanisms and Regulation of Transcription I

... 2. Our goal is to make a copy of the gene in the form of an RNA a. For prokaryotes, who have genes lacking introns, an mRNA copy will be produced b. For eukaryotes, who have genes containing introns, a pre-mRNA copy will be produced 3. As we learned, the RNA produced will basically have the same seq ...
Drosophila
Drosophila

... microscope slides cover slips paper towel compound microscope (x1000) organism: Drosophila larvae (well fed) Purpose: A number of physical and mental abnormalities have been found to be the result of either the addition or subtraction of one of the chromosomes of the normal compliment. In the case o ...
Ensembl Variations
Ensembl Variations

... Within 5 kb upstream of the 5'-end of a transcript In regulatory region annotated by Ensembl ...
Molecular mechanisms of sex determination and gonadal sex
Molecular mechanisms of sex determination and gonadal sex

... Y chromosome-linked DMY appears to have originated from a duplicate copy of autosomal DMRT1 (DM-related transcription factor 1), another DM domain gene that is most homologous to DMY (about 80% at the amino-acid level) and is involved in male development in various vertebrates (Nanda et al. 2002; Lu ...
Dwarfism in Cattle - Fancher Love Ranch
Dwarfism in Cattle - Fancher Love Ranch

... All mammals have genetic factors that express their characteristics. Genes are combinations of chromosomes; each pair of chromosomes determines the physical makeup of an animal. The group of chromosomes—the genome—includes genes that determine species in general (the genotype) as well as individual ...
CyO / cn bw let-a?
CyO / cn bw let-a?

... Found many pleiotropic lof alleles of both types IN AN F1 GENETIC SCREEN: dominant enhancers or suppressors of the R7 phenotype. But many of these DOMINANT "modifiers" were also recessive lethal (pleiotropic -- had other essential functions). Poising sev+ activity level on a phenotypic threshold mad ...
Navigating the HapMap - Oxford Academic
Navigating the HapMap - Oxford Academic

... measure that has been widely used for quantifying and comparing LD in the context of gene association mapping, is the correlation between alleles at two sites, r2 [23*]. When two alleles are always observed together then r2 ¼ 1, this indicates perfect LD and observation of one marker provides comple ...
A large scale analysis of resistance gene
A large scale analysis of resistance gene

... only function so far associated with the NB-ARC is in disease resistance, which is often manifested by a hypersensitive response involving programmed cell death. For plant genes it has become more common to refer to the NB-ARC as the Nucleotide Binding Site domain (NBS). Although the term NBS has be ...
Chapter 14: Genotype, phenotype and crosses Key questions
Chapter 14: Genotype, phenotype and crosses Key questions

... Twins have also been used to investigate the contribution of genes to behavioural traits such as personality, handedness and alcoholism. 17 Due to the absence of the enzyme phenylalanine hydroxylase, an accumulation of the amino acid phenylalanine in the tissues of individuals with phenylketonuria r ...
Nature Genetics: doi:10.1038/ng.3791
Nature Genetics: doi:10.1038/ng.3791

... short sequence reads back to their location in a reference genome. Such sequence-specific biases in mapping can lead to artificial associations between genotype and any functional genomics measurements made with short read sequences3. A very effective method for addressing these biases is to identif ...
Molecular Mechanisms of Developmental Review
Molecular Mechanisms of Developmental Review

... possibility that heterochronic gene activity might be modulated by hormonal signaling (Antebi et al., 2000). Functions for daf-12 are discussed in more detail below. In conclusion, the heterochronic gene cascades that control developmental timing in C. elegans may involve at least three cases of neg ...
Characterization and regulation of the bovine stearoyl-CoA desaturase gene promoter
Characterization and regulation of the bovine stearoyl-CoA desaturase gene promoter

... shown to be important in the human promoter [28]. Fragment F3 (414 bp) further extended by 36 bp longer than F2 to contain this CCAAT motif and SREBP binding sites. Fragment F4 (760 bp), F5 (1264 bp), and F6 (1523 bp) extended further into the promoter to analyze the full-length promoter activity. T ...
LIFE-SPAN DEVELOPMENT
LIFE-SPAN DEVELOPMENT

... Development? • What Are Some Reproductive Challenges and ...
1.1 - Biology Junction
1.1 - Biology Junction

... polygenic, meaning they are controlled by many genes. Many of your personal traits are only partly governed by genetics. Slide 11 of 43 Copyright Pearson Prentice Hall ...
genetics sheet#11,by Thulfeqar Alrubai`ey
genetics sheet#11,by Thulfeqar Alrubai`ey

Harrisslides
Harrisslides

... (annotation) • Develop tools: • to query and modify the vocabularies and annotations • annotation tools for curators ...
Biology 22 Problem Set 1 Spring 2003
Biology 22 Problem Set 1 Spring 2003

... c. Preston has a straight hairline and does not have CDG. His wife Patricia has CDG and a widow’s peak. Patricia’s mother has a straight hairline. For Preston and Patricia, what is the probability that their first child will be a son with a straight hairline and CDG and their second child will be a ...
Unit 1 Study Guide: Ecology and the Nature of Science
Unit 1 Study Guide: Ecology and the Nature of Science

... SG 1 – Themes of biology (6-9) A. Describe the properties that all living things have in common. Form an opinion about this classification of life. Do you thing ALL things can fall into the categories living OR nonliving? Why or why not? B. Describe what a “theme” is. Summarize each theme listed and ...
Gene list - Bioinformatics.ca
Gene list - Bioinformatics.ca

... Gene list: e.g. RRP6, MRD1, RRP7, RRP43, RRP42 (yeast) Gene sets or annotations: e.g. Gene ontology, transcription factor binding sites in promoter ...
Mutations
Mutations

... effect; and some produce beneficial variations. Some negatively disrupt gene function. Whether a mutation is negative or beneficial depends on how its DNA changes relative to the organism’s situation. Mutations are often thought of as negative because they disrupt the normal function of genes. Howev ...
Novel Function of the Eukaryotic Polypeptide
Novel Function of the Eukaryotic Polypeptide

... yeast GSPT gene and two mouse GSPT genes, the counterpart of human GSPT1 and a novel member of the GSPT gene family, GSPT2 [6, 7]. The mammalian GSPT1 and GSPT2 proteins could associate with a eukaryotic polypeptide-chain releasing factor, eRF1, to function as eRF3, though the two GSPTs were distinc ...
chapter 15 the nervous system
chapter 15 the nervous system

... 22. You are rushing to class because you are late and almost fall on an icy patch of pavement, but manage to keep your balance. 23. You feel angry and embarrassed when you rip your pants. 24. A stroke leaves a person unable to speak, what part of the brain has probably been affected? 25. After a bra ...
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Site-specific recombinase technology



Nearly every human gene has a counterpart in the mouse (regardless of the fact that a minor set of orthologues had to follow species specific selection routes). This made the mouse the major model for elucidating the ways in which our genetic material encodes information. In the late 1980s gene targeting in murine embryonic stem (ES-)cells enabled the transmission of mutations into the mouse germ line and emerged as a novel option to study the genetic basis of regulatory networks as they exist in the genome. Still, classical gene targeting proved to be limited in several ways as gene functions became irreversibly destroyed by the marker gene that had to be introduced for selecting recombinant ES cells. These early steps led to animals in which the mutation was present in all cells of the body from the beginning leading to complex phenotypes and/or early lethality. There was a clear need for methods to restrict these mutations to specific points in development and specific cell types. This dream became reality when groups in the USA were able to introduce bacteriophage and yeast-derived site-specific recombination (SSR-) systems into mammalian cells as well as into the mouse
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