Gene trapping is a high-throughput approach that is used to introduce insertional mutations across the mammalian genome.
Gene duplication occurs when an error in DNA replication leads to the duplication of a region of DNA containing a (generally functional) gene.
GENE INTERACTIONS
Table of Contents
Between 1884 (the year Mendel died) and 1888 details of mitosis and meiosis were reported, the cell nucleus was identified as the location of the genetic material, ...
Gene Therapy: requirements
The gene must be identified and cloned.This has been done for the ADA gene.
It must be inserted in cells that can take up long-term residence in the patient.
gene mapping
the strategies that locate the position of gene loci on chromosomes
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...
Gene Therapy Clinical Trials
Gene therapy studies in ClinicalTrials.gov - The U.S. National Institutes of Health resource for public access to information on clinical research studies.
Gene products, tat
Trans-acting transcription factors. Nuclear proteins whose expression is required for hiv viral replication. The tat protein stimulates hiv-ltr-driven rna synthesis for both viral regulatory and viral structural proteins.
Gene families are made up of similar, but not identical, genes. The globin family is the best studied gene family. Hemoglobin consists, in humans, of 2 a-chains and 2 b-chains clustered about a common heme.
Search for gene in these other databases too
Definition of gene :
A basic unit of hereditary material; an ordered sequence of nucleotide bases that encodes a product (this product could be just RNA like rRNA or finally coding for a protein).
The movement of a gene fragment from one chromosomal location to another, which often alters or abolishes expression.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
Gene Environment Interaction
Gene environment interaction is an influence on the expression of a trait that results from the interplay between genes and the environment.
Gene Regulation Is Necessary
By switching genes off when they are not needed, cells can prevent resources from being wasted. There should be natural selection favoring the ability to switch genes on and off.
Eukaryotic Gene Expression Problem Set
Instructions: The following problems have multiple choice answers. Correct answers are reinforced with a brief explanation. Incorrect answers are linked to tutorials to help solve the problem.
Chapter 6
Tau gene mutations and neurodegeneration
Michel Goedert*1 and Maria Grazia Spillantini† ...
Gene conversion
An genetic event that produces abnormal segregations by non-reciprocal recombination.
Gene Gateway
Research Archive
Human Genome Acronym List maintained by HGMIS for the U.S. D.O.E. Human Genome Program ...
Gene: An ordered sequence of nucleotides which act as the functional subunit of hereditary information. The collection of genes in an organism determine the characteristics of that organism.
Gene: The fundamental unit of heredity.
Gene expression: The process by which genes express themselves: in the cell, ge ne expression results in the manufacture of proteins that determine an organism's characteristics.
gene amplification
The selective synthesis of DNA, which results in multiple copies of a single gene, thereby enhancing expression.
gene cloning ...
gene - section of a chromosome which codes for a protein or RNA product.
hereditary material - the information which is passed from one cellular generation to the next (encoded in DNA in humans).
Gene: A biochemical unit of hereditary, often coding for an entire protein.
Generalist: A pest or natural enemy that can utilize a wide range of species as host or prey.
Gene gun: A device invented at Cornell University that allows genetic material to be introduced into a new organism. The genetic material from the donor is "shot" into cells of the recipient, and the material is incorporated into its DNA.
Gene A unit of heredity; a segment of DNA that contains the code for making a specific protein or RNA molecule.
Genome (JEE-nome) All of an organism's genetic material.
Gene expression: The process by which a gene's coded information is converted into the structures present and operating in the cell.
Gene. A locus on a chromosome that encodes a specific protein or several related proteins. It is considered the functional unit of heredity.
gene trap Gene traps, also known as promoter traps or exon traps, are type of DNA construct containing a reporter gene downstream of a splice acceptor site.
Gene map A diagram of the relative positions of genes within the genome
Gene pool All the alleles at a particular locus present in a population.
gene cloning - isolation and amplification of selected pieces of DNA by recombinant DNA techniques.
genome - complete haploid complement of DNA (including all genes) from the chromosomes of the nucleus of an organism.
gene
one of many discrete units of hereditary information located on the chromosomes and consisting of DNA.
germinal disc
A small mass of active protoplasm found directly under the vitelline membrane.
Gene
The functional and physical units of heredity passed from parent to offspring, genes are pieces of DNA stored in the cell nucleus. They are the recipes for making proteins. Each gene consists of several thousand code words.
Gene duplication Duplication of a gene in the process of replication. One of the duplication products may accumulate mutations and eventually evolve into a gene with a different but related function.
Single Gene Disorders
Examples to select from are NF 1, Huntington, Tay-Sachs, Phenylketonuria, Osteogenesis Imperfecta, Sickle Cell Disease; Duchenne/Becker Muscular Dystrophy, Cystic Fibrosis, Marfan, Androgen Insensitivity, ...
Gene cluster
Term coined by Demerec & Hartman (1959) for a group of closely linked genes that code for a series of enzymes for successive steps in a metabolic pathway. If the gene cluster is controlled by an operator the whole unit is called operon.
Gene therapy is a more ambitious endeavor: its goal is to treat or cure a disease by providing a normal copy of the individual's mutated gene.
Gene
- A unit of hereditary information. A gene is a section of a DNA molecule that specifies the production of a particular protein.
Gene amplification ...
gene banks Storage for seed varieties for future breeding experiments.
gene flow An exchange of genes between two populations of a species, or in extreme cases, between populations of two species (hybridization).
GENE GUN
Ballistic particle-mediated gene transfer. Complementary DNA molecules are adsorbed to gold particles and shot by a pressure gas jet into tissues or culture cells.
HIGH-PRESSURE FREEZING ...
Gene duplication is important because it is a way to get new genes. Once a gene has been duplicated one copy can change while the other remains the same.
GENE CONVERSION - The alteration of all or part of a gene by a homologous donor DNA that is itself not altered in the process.
GENOME - The complete set of genetic information defining a particular animal, plant, organism or virus.
Gene: A unit of DNA which performs one function. Usually, this is equated with the production of one RNA or one protein. A gene contains coding regions, introns, untranslated regions and control regions.
...
A map of gene positions on a chromosome. Distances between two genes can be determined by recombination and by genome sequencing project.
Related
Map distance ...
The total gene complement of a set of chromosomes in higher life forms or the functionally similar but simplar linear arrangement in bacteria or viruses ...
Reporter gene Gene coding for an easily assayed protein which is used to detect expression of the gene under different conditions; usually to test the activity of a promoter.
Ab initio gene prediction: A computing biology technique that attempts to identify genes without any knowledge of their function nor of the genetics of the organism.
rbcL -- a gene which is located in the chloroplast of photosynthetic organisms. It codes for the large subunit of the protein rubisco, and its sequence has been useful in plant phylogenies.
Single-gene disorder Hereditary disorder caused by a mutant allele of a single gene (e.g., Duchenne muscular dystrophy, retinoblastoma, sickle cell disease). Compare polygenic disorders.
Scientists write gene pairs by using capital and lowercase letters. (TT, Tt, tt) The capital letter represents a dominate gene, while the lower case letter indicates a recessive gene.
Alternate forms of a gene or DNA sequence, which occur on either of two homologous chromosomes in a diploid organism. (See DNA polymorphism.) Alternative mRNA splicing. The inclusion or exclusion of different exons to form different mRNA transcripts.
Allele -- an alternative form of a gene; any one of several mutational forms of a gene. Alpha-fetoprotein (AFP) -- a protein excreted by the fetus into the amniotic fluid and from there into the mother's bloodstream through the placenta.
The theory of evolution postulates that all organisms on the Earth, both living and extinct, have descended from a common ancestor or an ancestral gene pool. This last universal common ancestor of all organisms is believed to have appeared about 3.
Often, GMOs are produced using gene cloning methods as a means of introducing a non-native gene into a new "recombinant" organism.
RNA and ribosomal subunits must be constantly transferred from the nucleus where they are made to the cytoplasm, and histones, gene regulatory proteins, DNA and RNA polymerases, ...
Allele: One of the alternative forms of a particular gene. Each gene is comprised of two alleles, one inherited from the father and one from the mother. However, within a population, many alleles may exist for one gene.
Mutation a change in a gene
(muta = change)
Myocardial Infarction death of a portion of the heart muscle due to lack of blood supply due to a blocked artery
(myo = muscle; cardio = heart; infarct = filled in‚ stuffed) ...
All existing organisms on Earth are descended from a common ancestor or ancestral gene pool. This "last universal common ancestor, that is, the most recent common ancestor of all organisms, is believed to have appeared about 3.
Parapatric speciation. The differentiation into distinct species of populations experiencing some gene flow
Parasite. An organism living on or in, and negatively affecting, another organism ...
The fourth stage of prophase 1 of meiosis, following the pachytene stage, in which there is continued shortening and thickening of the chromosomes. Final gene transcription is completed, after which diakinesis occurs.
 See also: DNA, Trans, Organ, Protein, Human
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