Evidence for new theory of genetic recombination

In most higher organisms, including humans, every cell carries two versions of each gene, which are referred to as alleles. Each parent passes on one allele to each offspring. As they are linked together on chromosomes, adjacent ...

Safeguarding genome integrity through extraordinary DNA repair

(PhysOrg.com) -- DNA is under constant attack, from internal factors like free radicals and external ones like ionizing radiation. About 10 double-strand breaks – the kind that snap both backbones of the double helix ...

New insights in the regulation of genetic information exchange

Within every cell in our body, our DNA is tightly bundled with proteins to form structures known as chromosomes. The commonly known shape of a chromosome relates to an X-shaped appearance in many organisms. The formation ...

Scientists unravel key steps in the road to DNA repair

Researchers from Tokyo Metropolitan University have been studying DNA repair by homologous recombination, where the RecA protein repairs breaks in double-stranded DNA by incorporating a dangling single-strand end into intact ...

Nematode proteins shed light on infertility

In a new study published in the Proceedings of the National Academy of Sciences, University of Utah (the U) biologists have developed a method for illuminating the intricate interactions of the synaptonemal complex in the ...

A NICER approach to genome editing

The gene editing technique CRISPR/Cas9 has allowed researchers to make precise and impactful changes to an organism's DNA to fix mutations that cause genetic disease. However, the CRISPR/Cas9 method can also result in unintended ...

When editing bacteria with CRISPR, less is more

Systematically attenuating DNA targeting activity can achieve CRISPR-driven editing in bacteria, greatly boosting colony counts and even increasing the frequency of precise genome editing. This was shown in a study of the ...

page 1 from 6