Genetic Recombination

Genetic recombination is the exchange or rearrangement of DNA between genetic molecules, creating new combinations of alleles and increasing biological diversity. During meiosis, homologous chromosomes pair and exchange corresponding segments through crossing over, while DNA break repair and independent assortment further reshuffle genetic material; recombination can also occur through horizontal gene transfer or molecular repair processes. These mechanisms generate variation that supports adaptation and evolution and help maintain genome integrity. In biology, studying genetic recombination enables gene mapping, analysis of inheritance, crop and animal breeding, and investigation of chromosome behavior, genome organization, and genetic disease.

Genetic Recombination - Related Videos

Research

JoVE Journal - Biology

Genetic Modification and Recombination of Salivary Gland Organ Cultures

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Cited by 20 •

2013

A technique to genetically manipulate epithelial cells within whole ex vivo cultured embryonic mouse submandibular glands (SMGs) using viral gene transfer is described. This method takes advantage of the innate ability of SMG epithelium and mesenchyme to spontaneously recombine after separation and infection of epithelial rudiments with adenoviral vectors.

Genetic Modification of Primary Human Keratinocytes: A Method for Genetically Manipulating Keratinocytes Using Recombinant Retroviruses

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2023

This video describes a detailed protocol for producing genetically modified primary human keratinocytes recombinant retrovirus. This method can be used to manipulate gene expression in keratinocytes.

TransFLP — A Method to Genetically Modify Vibrio cholerae Based on Natural Transformation and FLP-recombination

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Cited by 32 •

2012

A quick method to modify the genome of V. cholerae is described. These modifications include the deletion of single genes, gene clusters and genomic islands as well as the integration of short sequences (e.g. promoter elements or affinity-tag sequences). The method is based on the natural transformation and FLP-recombination.

Education

JoVE Science Education - Advanced Biology

Recombineering and Gene Targeting

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2023

One of the most widely used tools in modern biology is molecular cloning with restriction enzymes, which create compatible ends between DNA fragments that allow them to be joined together. However, this technique has certain restrictions that limit its applicability for large or complex DNA construct generation. A newer technique that addresses some of these shortcomings is recombineering, which modifies DNA using homologous recombination (HR), the exchange between different DNA molecules based...

An Overview of Genetic Engineering

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2023

Genetic engineering – the process of purposefully altering an organism’s DNA – has been used to create powerful research tools and model organisms, and has also seen many agricultural applications. However, in order to engineer traits to tackle complex agricultural problems such as stress tolerance, or to realize the promise of gene therapy for treating human diseases, further advances in the field are still needed. Important considerations include the safe and efficient delivery of genetic...

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