White mice in a clear plastic cage
Different Genes Influence Lifespan in Male and Female Mice
Researchers say there may be similar, human genes whose effects on lifespan vary by sex.
Different Genes Influence Lifespan in Male and Female Mice
Different Genes Influence Lifespan in Male and Female Mice

Researchers say there may be similar, human genes whose effects on lifespan vary by sex.

Researchers say there may be similar, human genes whose effects on lifespan vary by sex.

DNA
Karyotype with most chromosomes in blue, one in red and green. 
Researchers Fuse Mouse Chromosomes in Scientific First
Natalia Mesa | Aug 25, 2022
The findings will likely help elucidate the effects of chromosome fusions, which can cause disease but have also contributed to evolution.
Landscape illustration
Horizontal Gene Transfer Happens More Often Than Anyone Thought
Christie Wilcox | Jul 5, 2022
DNA passed to and from all kinds of organisms, even across kingdoms, has helped shape the tree of life, to a large and undisputed degree in microbes and also unexpectedly in multicellular fungi, plants, and animals.
Discover How to Design Sensitive Nucleic Acid Lateral Flow Assays
Go with the Flow: Adapting Lateral Flow Assays for Nucleic Acid Detection
The Scientist Creative Services Team and nanoComposix
Scientists incorporate sensitive nanoparticles to rapidly detect DNA and RNA.
A drawing of pseudostratified gut epithelial cells in the early intestines, cells in red and nucleus in purple.
Move Over Apoptosis: Another Form of Cell Death May Occur in the Gut
Natalia Mesa | May 18, 2022
Though scientists don’t yet know much about it, a newly described process called erebosis might have profound implications for how the gut maintains itself.
Dogs of various breeds running in the field.
They’re All (Potentially) Good Dogs
Natalia Mesa | Apr 29, 2022
Research finds that a dog’s behavior has little to do with its genes.
Filling in the Gaps: Sequencing the Entire Human Genome
The Scientist Speaks - Filling in the Gaps: Sequencing the Entire Human Genome
Iris Kulbatski, PhD
Karen Miga discusses how she and collaborators sequenced the missing parts of the human genome almost two decades after the first Human Genome Project published its results.
Illustration of a meteorite shower heading for Earth
All RNA and DNA Base Types Are Found in Meteorites, Study Claims
Catherine Offord | Apr 27, 2022
The discovery could add weight to the hypothesis that the building blocks of life on Earth originally came from space, but some scientists note the possibility of contamination.
illustration of a mitochondrian inside a cell
Could Dad’s Mitochondrial DNA Benefit Hybrids?
Alejandra Manjarrez | Jan 20, 2022
Studies have found that organisms can inherit mitochondria from male parents in rare instances, and both theoretical and experimental work hint that this biparental inheritance is more than just a fluke.
The Mosaic Brain
Sejal Davla, PhD
How somatic mutations cause brain diseases
chemical visualization of a G-quadruplex
Strange DNA Structures Linked to Cancer
Sophie Fessl | Jan 19, 2022
A study reveals a connection between the loss of enzymes responsible for removing methyl groups from DNA, nucleic acid knots, and cancer development in mice.
DNA cell on scientific background
Mechanism of a Genome Packaging Machine Discovered
Ruth Williams | Jan 17, 2022
Detailed analyses of cohesin’s movements indicate how this protein complex hauls chromatin fibers to package DNA into loops.
Technique Talk: Purifying Plant-Based Endogenous Biomolecules
Technique Talk: Purifying Plant-Based Endogenous Biomolecules
The Scientist Creative Services Team
Learn how reagents affect plant nucleic acids and jeopardize downstream PCR work.
The hinge region of cohesin pulls DNA to two head regions, like a person’s hand-to-hand motion of pulling on a rope.
Infographic: How Genome-Packaging Protein Cohesin Handles DNA
Ruth Williams | Jan 17, 2022
The hinge region of cohesin pulls DNA to two head regions, like a person’s hand-to-hand motion of pulling on a rope.
mummy
Scratchy Scalps Help Glue Together Pieces of an Ancient Past
Chloe Tenn | Dec 29, 2021
Scientists find human DNA preserved in lice cement from the heads of South American mummies.
Millipore stock
Viral Nucleic Acid Purification in a Single Spin
The Scientist Creative Services Team and MilliporeSigma
A simple nucleic acid extraction approach quickly purifies genomic viral RNA and DNA while minimizing cross-contamination risks.
An electron microscopy image of a cell with the nucleolus shown in blue, chromatin in green, and nuclear envelope in red
Aging in Mice Linked to Misexpression of Class of Genes
Sophie Fessl | Dec 21, 2021
Genes lacking a particular structure known as CpG islands tend to go haywire in older cells, a study finds, potentially contributing to key facets of aging. But it’s not yet clear if the relationship is causal.
man in black shirt looking at camera
Revolutionary Crystallographer Ned Seeman Dies at 75
Lisa Winter | Dec 20, 2021
Seeman is best known for establishing the field of DNA nanotechnology.
Quick and Reliable Plant DNA Extraction
Quick and Reliable Plant DNA Extraction
MilliporeSigma
An innovative, environmentally-friendly spin kit maximizes DNA isolation.
illustration of a broken DNA strand
DNA Damage Makes Zebrafish Sleepy
Sophie Fessl | Nov 18, 2021
Buildup of a DNA-repair protein in brain cells spurs shut-eye in the fish, a study finds, and similar results in mice suggest the mechanism is widespread in animals.