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Genomics

Genomics

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...

Genome Annotation and Assembly

Genome Annotation and Assembly

The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.

Evolution of Microbial Genome

Evolution of Microbial Genome

Microbial genome evolution is a highly dynamic process shaped by continual gene gain and loss across species and strains. This genomic flexibility allows microorganisms to adapt rapidly to environmental pressures and interactions with other organisms. Central to understanding this diversity is the distinction between the core and pan genomes.The core genome comprises the genes shared by all sampled strains of a species, representing essential functions needed for fundamental cellular processes.

Genetic Screens

Genetic Screens

Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...

Evolutionary Relationships through Genome Comparisons

Evolutionary Relationships through Genome Comparisons

Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...

Pharmacogenomics: Identification of New Drug Targets

Pharmacogenomics: Identification of New Drug Targets

Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...

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Related Experiment Video

Updated: May 30, 2026

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

Published on: November 12, 2012

Defining genome maintenance pathways using functional genomic approaches.

Carol E Bansbach¹, David Cortez

¹Department of Biochemistry, Vanderbilt University School of Medicine, Light Hall, Nashville, TN 37232, USA.

Critical Reviews in Biochemistry and Molecular Biology

|July 27, 2011

Summary

This summary is machine-generated.

Genome maintenance pathways protect DNA integrity and prevent diseases like cancer. High-throughput functional genomics methods are advancing our understanding of these crucial cellular processes in complex organisms.

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Area of Science:

Molecular Biology
Genetics
Cell Biology

Background:

Genome maintenance is vital for preventing diseases such as cancer, neurodegeneration, and premature aging.
Defects in DNA repair, cell cycle control, and checkpoint signaling pathways compromise genome integrity.
Understanding these pathways is critical for developing therapeutic strategies against various diseases.

Purpose of the Study:

To review the application of high-throughput functional genomic methodologies in higher eukaryotes.
To explore how advanced techniques interrogate genome maintenance activities.
To highlight the role of new technologies in expanding knowledge of genome maintenance proteins.

Main Methods:

Expression profiling
Proteomics
RNA interference (RNAi) technologies
Functional genomics approaches

Main Results:

Recent advances in functional genomics have significantly expanded the knowledge of proteins involved in genome maintenance.
High-throughput methodologies enable large-scale interrogation of complex biological pathways.
These techniques facilitate a deeper understanding of the intricate network of genome maintenance.

Conclusions:

High-throughput functional genomics are powerful tools for studying genome maintenance in higher eukaryotes.
Continued application of these methodologies will accelerate discoveries in DNA repair and cell cycle control.
Advancements in understanding genome maintenance pathways hold promise for disease prevention and treatment.