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DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

DNA Stretching: Minimizing Thermal Fluctuations for Imaging

The majority of microscopes can only illuminate objects up to a specific size before the smallest details start to blend together.

15 Jan 2025

Understanding RapA's Function in E. coli R-loop Control

From a genetic perspective, it is the worst-case scenario for a bacterium: during transcription, freshly created RNA adheres to its DNA template to form a three-stranded structure called an R-loop.

15 Jan 2025

Outer Ears Evolved From Fish Gills Through Unique Genetic Mechanism

The outer ear is unique to mammals, but its evolutionary origin has remained a mystery. According to a new study published in Nature from the USC Stem Cell lab of Gage Crump, this intricate coil of cartilage has a surprisingly ancient origin in the gills of fishes and marine invertebrates.

10 Jan 2025

Researchers Discover How Protein Instability Drives Heritable Diseases

Most mutations which cause disease by swapping one amino acid out for another do so by making the protein less stable, according to a massive study of human protein variants published today in the journal Nature.

10 Jan 2025

Illuminating RNA Function with Innovative Bioluminescent Probes

The molecule that reads the genetic data contained in DNA is called RNA. Researchers at the University of California, Irvine have found a method to tag RNA with a glowing bioluminescent molecule, which enables them to track RNA in real time as it travels throughout the body.

10 Jan 2025

Arabidopsis Study Finds that Centromeres Call the Shots in Retrotransposon Integration

Centromeres play a crucial role in cell division, with CENH3 guiding retrotransposon Tal1 integration, revealing insights into genome evolution and stability.

10 Jan 2025

New Discovery Sheds Light on How Monoamines Regulate Brain Rhythms

A collaborative effort between Mount Sinai and Memorial Sloan Kettering Cancer Center has shed valuable light on how monoamine neurotransmitters such as serotonin, dopamine, and now histamine help regulate brain physiology and behavior through chemical bonding of these monoamines to histone proteins, the core DNA-packaging proteins of our cells.

9 Jan 2025

New Gene Editing Tool Combines Multiple Functions for Treating Genetic Diseases

Influential inventions often combine existing tools in new ways. The iPhone, for instance, amalgamated the telephone, web browser and camera, among many other devices.

9 Jan 2025

Rewriting History: Advanced Genetic Analysis Uncovers Ancient Ancestry Shifts in Europe

High-resolution analysis of ancient genomes reveals key Scandinavian ancestry movements in early medieval Europe, highlighting complex genetic interactions.

9 Jan 2025

New Genomic Evidence Sheds Light on Early Migration into Wallacea

A new study from the University of Adelaide and The Australian National University (ANU) has outlined the first genomic evidence of early migration from New Guinea into the Wallacea, an archipelago containing Timor-Leste and hundreds of inhabited eastern Indonesian islands.

8 Jan 2025

New Insights into Nuclear Lipid Droplets as Regulators of Aging and Metabolic Health

A new research perspective was published in Aging (listed by MEDLINE/PubMed as "Aging (Albany NY)" and "Aging-US" by Web of Science) Volume 16, Issue 22 on December 9, 2024, entitled "Nuclear lipid droplets: a novel regulator of nuclear homeostasis and aging."

8 Jan 2025

New Mechanism Revealed for Immune Response to DNA Damage

A research team from the University of California, Irvine has revealed a previously unknown mechanism that triggers an inflammatory immune response in cells when their DNA is damaged.

7 Jan 2025

Genetic Discovery Offers Potential for Higher Crop Yields and Biofuel Production

A team of scientists with two Department of Energy Bioenergy Research Centers -; the Center for Bioenergy Innovation, or CBI, at Oak Ridge National Laboratory and the Center for Advanced Bioenergy and Bioproducts Innovation, or CABBI, at the University of Illinois Urbana-Champaign -; identified a gene in a poplar tree that enhances photosynthesis and can boost tree height by about 30% in the field and by as much as 200% in the greenhouse.

6 Jan 2025

Bacteria in Lake Mendota Evolve with Changing Seasons

Like Bill Murray in the movie "Groundhog Day," bacteria species in a Wisconsin lake are in a kind of endless loop that they can't seem to shake. Except in this case, it's more like Groundhog Year.

6 Jan 2025

Researchers Discover Key Factor Behind Disease Resistance in Gene Carriers

New work by Columbia researchers has turned a textbook principle of genetics on its head and revealed why some people who carry disease-causing genes experience no symptoms.

3 Jan 2025

Biologists Reveal Genetics Behind Walnut Trees' Alternating Sexes

The genetics behind the alternating sexes of walnut trees has been revealed by biologists at the University of California, Davis.

3 Jan 2025

Epigenetic Clocks Offer Insight into Biological Age at Cell-Type Resolution

A new priority research paper, featured as the cover of Aging (listed by MEDLINE/PubMed as "Aging (Albany NY)" and "Aging-US" by Web of Science) Volume 16, Issue 22, was published on December 29, 2024. The paper is titled "Cell-type specific epigenetic clocks to quantify biological age at cell-type resolution."

3 Jan 2025