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Related Concept Videos

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Genomics

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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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Genomic Imprinting and Inheritance02:30

Genomic Imprinting and Inheritance

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Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
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Genome Size and the Evolution of New Genes03:21

Genome Size and the Evolution of New Genes

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While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.
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Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes02:16

Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes

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The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
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Genomic DNA in Prokaryotes00:46

Genomic DNA in Prokaryotes

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The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
Genomic Diversity in Bacteria
Although bacterial genomes are much...
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Genomic DNA in Eukaryotes00:58

Genomic DNA in Eukaryotes

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Eukaryotes have large genomes compared to prokaryotes. To fit their genomes into a cell, eukaryotic DNA is packaged extraordinarily tightly inside the nucleus. To achieve this, DNA is tightly wound around proteins called histones, which are packaged into nucleosomes that are joined by linker DNA and coil into chromatin fibers. Additional fibrous proteins further compact the chromatin, which is recognizable as chromosomes during certain phases of cell division.
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Generation of Comprehensive Thoracic Oncology Database - Tool for Translational Research
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Rat Genome Databases, Repositories, and Tools.

Stanley J F Laulederkind1, G Thomas Hayman2, Shur-Jen Wang2

  • 1Department of Biomedical Engineering, Rat Genome Database, Medical College of Wisconsin, Milwaukee, WI, USA. slaulede@mcw.edu.

Methods in Molecular Biology (Clifton, N.J.)
|June 23, 2019
PubMed
Summary
This summary is machine-generated.

The Rat Genome Database (RGD) is a key resource for researchers, consolidating data from global strain repositories and databases. It offers manually curated and computationally gathered information for advancing rat research.

Keywords:
AnalysisAnnotationDatabaseDiseaseGeneGenomicsModel organismPathwayPhenotypeVisualization

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Area of Science:

  • Genomics
  • Bioinformatics
  • Animal Models

Background:

  • Extensive resources exist for rat researchers globally.
  • These include numerous strain repositories and databases.

Purpose of the Study:

  • To highlight the Rat Genome Database (RGD) as a central resource.
  • To describe the data integration capabilities of the RGD.

Main Methods:

  • The RGD aggregates data from various global sources.
  • Data is collected through manual curation and computational methods.

Main Results:

  • The RGD serves as the primary repository for rat-specific data.
  • It provides a unified access point for diverse datasets.

Conclusions:

  • The RGD is an essential tool for the rat research community.
  • Its comprehensive data collection enhances research efficiency and discovery.