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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).

Cold Adaptation in Rice Offers New Insights into Evolution

Chinese researchers recently discovered molecular evidence supporting Lamarckism, a long-debated theory from the early 19th century that suggests acquired traits can be inherited.

27 May 2025

Unraveling Bacterial Biomass Loss for Climate Prediction

Marine bacteria control the amount of CO2 stored in the oceans by swimming after and destroying sinking particles that might otherwise linger in the ocean for millennia.

27 May 2025

New LLNL Method Accelerates Protein Screening for Drug Discovery

Machine learning and supercomputing have brought about a revolution in computational drug discovery.

24 May 2025

RNA Editing and Transcriptional Switching Shape Fungal Antiviral Response

The expression of symptoms of viral infections is a byproduct of complex virus-host molecular pathways. These remain largely unknown, especially in the case of fungus-virus pathogen systems.

24 May 2025

Machine Learning Reveals Molecular Profile Differences in Colorectal Cancer Patients

Scientists aiming to advance cancer diagnostics have developed a machine learning tool that is able to identify metabolism-related molecular profile differences between patients with colorectal cancer and healthy people.

24 May 2025

New Genomic Score Predicts Risk of Progression in Multiple Myeloma

A new risk assessment score developed by researchers at Dana-Farber Cancer Institute and the Broad Institute of MIT and Harvard reveals how multiple myeloma, a form of blood cancer, begins and progresses from precancerous to malignant states by tracing DNA mutations.

24 May 2025

Gene Loss and Gain Shaped the Evolution of Relapsing Fever Bacteria

Researchers at the Francis Crick Institute and UCL have analyzed ancient DNA from Borrelia recurrentis, a type of bacteria that causes relapsing fever, pinpointing when it evolved to spread through lice rather than ticks, and how it gained and lost genes in the process.

24 May 2025

Study Reveals How Introns Multiply and Move Across Genomes

DNA is the genetic code that provides the biological instructions for every living species, but not every bit of DNA helps the species survive. Some pieces of DNA are more like parasites, along for the ride and their own survival.

24 May 2025

Uncovering How Cholera Evaded Phages For Epidemic Success

Cholera bacteria engage in microscopic battles with phages, influencing pandemic dynamics and highlighting the role of viral defenses in outbreak management.

23 May 2025

Reversible DNA Modification Controls Replication and Gene Activity

Study uncovers ADP-ribosylation's role in Mycobacterium tuberculosis, showing how DNA modification controls replication and gene expression for survival.

23 May 2025

Natural Deep Eutectic Solvents Enhance Yield and Antibacterial Activity of Zanthoxylum bungeanum

NADES treatments significantly boost essential oil yield and antibacterial activity in Zanthoxylum bungeanum, offering a natural solution to food contamination.

23 May 2025

Scientists Develop Method to Overcome Key Limitations of Cryo-EM

Sample loss has been a persistent problem in cryo-EM, a high-tech method for creating 3D models of molecules that reveals their inner structures.

22 May 2025

Study Reveals Epigenetic Clues Behind Autism Development

Autism spectrum disorder (ASD) is a condition affecting the brain's development and often affects the ability of a person to perceive sensory information and social cues and socialize with others.

22 May 2025

New CRISPR Technology for Precise RNA Delivery in Neurons

Proteins produced by RNA segments can aid in the repair of damaged neurons in human bodies.

22 May 2025

Unraveling the Co-Evolution of Human Height and Basal Metabolic Rate

Taller stature and a higher basal metabolic rate are two characteristics that distinguish modern humans from non-human primates. A genetic variant that helped these traits co-evolve was discovered by researchers and published in Cell Genomics.

22 May 2025

Ultra-Rapid Genetic Test Revolutionizes Brain Tumor Diagnosis

Scientists and medics have developed an ultra-rapid method of genetically diagnosing brain tumors that will cut the time it takes to classify them from 6-8 weeks, to as little as two hours – which could improve care for thousands of patients each year in the UK.

21 May 2025